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Finding the Fourth Proportional to 201,012,129.70, 281,799,619.10 and 201,012,129.70

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Solution

The fourth proportional to 201,012,129.70, 281,799,619.10 and 201,012,129.70 is: 281,799,619.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,012,129.70 : 281,799,619.10 = 201,012,129.70 : x
  2. Step 2: Convert to fraction form
    201,012,129.70/281,799,619.10 = 201,012,129.70/x
  3. Step 3: Cross multiply
    201,012,129.70x = 281,799,619.10 × 201,012,129.70
  4. Step 4: Simplify right side
    201,012,129.70x = 56,645,141,583,939,800
  5. Step 5: Solve for x
    x = 56,645,141,583,939,800/201,012,129.70
  6. Step 6: Final answer
    x = 281,799,619.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.