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Finding the Fourth Proportional to 124,543.80, 186,815.70 and 35,792.10

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Solution

The fourth proportional to 124,543.80, 186,815.70 and 35,792.10 is: 53,688.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,543.80 : 186,815.70 = 35,792.10 : x
  2. Step 2: Convert to fraction form
    124,543.80/186,815.70 = 35,792.10/x
  3. Step 3: Cross multiply
    124,543.80x = 186,815.70 × 35,792.10
  4. Step 4: Simplify right side
    124,543.80x = 6,686,526,215.97
  5. Step 5: Solve for x
    x = 6,686,526,215.97/124,543.80
  6. Step 6: Final answer
    x = 53,688.15

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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.