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Finding the Fourth Proportional to 282,299.70, 423,127.44 and 113,712.15

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Solution

The fourth proportional to 282,299.70, 423,127.44 and 113,712.15 is: 170,438.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,299.70 : 423,127.44 = 113,712.15 : x
  2. Step 2: Convert to fraction form
    282,299.70/423,127.44 = 113,712.15/x
  3. Step 3: Cross multiply
    282,299.70x = 423,127.44 × 113,712.15
  4. Step 4: Simplify right side
    282,299.70x = 48,114,730,926.40
  5. Step 5: Solve for x
    x = 48,114,730,926.40/282,299.70
  6. Step 6: Final answer
    x = 170,438.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.