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Finding the Fourth Proportional to 228,061.80, 314,720.10 and 127,459.80

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Solution

The fourth proportional to 228,061.80, 314,720.10 and 127,459.80 is: 175,891.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,061.80 : 314,720.10 = 127,459.80 : x
  2. Step 2: Convert to fraction form
    228,061.80/314,720.10 = 127,459.80/x
  3. Step 3: Cross multiply
    228,061.80x = 314,720.10 × 127,459.80
  4. Step 4: Simplify right side
    228,061.80x = 40,114,161,001.98
  5. Step 5: Solve for x
    x = 40,114,161,001.98/228,061.80
  6. Step 6: Final answer
    x = 175,891.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.