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Finding the Fourth Proportional to 124,851.60, 187,050.60 and 72,104.40

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Solution

The fourth proportional to 124,851.60, 187,050.60 and 72,104.40 is: 108,025.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,851.60 : 187,050.60 = 72,104.40 : x
  2. Step 2: Convert to fraction form
    124,851.60/187,050.60 = 72,104.40/x
  3. Step 3: Cross multiply
    124,851.60x = 187,050.60 × 72,104.40
  4. Step 4: Simplify right side
    124,851.60x = 13,487,171,282.64
  5. Step 5: Solve for x
    x = 13,487,171,282.64/124,851.60
  6. Step 6: Final answer
    x = 108,025.62

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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.