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Finding the Fourth Proportional to 115,280.10, 172,920.15 and 62,792.10

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Solution

The fourth proportional to 115,280.10, 172,920.15 and 62,792.10 is: 94,188.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,280.10 : 172,920.15 = 62,792.10 : x
  2. Step 2: Convert to fraction form
    115,280.10/172,920.15 = 62,792.10/x
  3. Step 3: Cross multiply
    115,280.10x = 172,920.15 × 62,792.10
  4. Step 4: Simplify right side
    115,280.10x = 10,858,019,350.82
  5. Step 5: Solve for x
    x = 10,858,019,350.82/115,280.10
  6. Step 6: Final answer
    x = 94,188.15

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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.