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Finding the Fourth Proportional to 104,847.53, 157,140.13 and 82,572.93

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Solution

The fourth proportional to 104,847.53, 157,140.13 and 82,572.93 is: 123,756.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,847.53 : 157,140.13 = 82,572.93 : x
  2. Step 2: Convert to fraction form
    104,847.53/157,140.13 = 82,572.93/x
  3. Step 3: Cross multiply
    104,847.53x = 157,140.13 × 82,572.93
  4. Step 4: Simplify right side
    104,847.53x = 12,975,520,954.68
  5. Step 5: Solve for x
    x = 12,975,520,954.68/104,847.53
  6. Step 6: Final answer
    x = 123,756.10

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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.