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Finding the Fourth Proportional to 104,788.80, 157,209.72 and 29,909.28

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Solution

The fourth proportional to 104,788.80, 157,209.72 and 29,909.28 is: 44,871.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,788.80 : 157,209.72 = 29,909.28 : x
  2. Step 2: Convert to fraction form
    104,788.80/157,209.72 = 29,909.28/x
  3. Step 3: Cross multiply
    104,788.80x = 157,209.72 × 29,909.28
  4. Step 4: Simplify right side
    104,788.80x = 4,702,029,534.20
  5. Step 5: Solve for x
    x = 4,702,029,534.20/104,788.80
  6. Step 6: Final answer
    x = 44,871.49

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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.