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Finding the Fourth Proportional to 530,129.80, 794,922.28 and 156,104.20

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Solution

The fourth proportional to 530,129.80, 794,922.28 and 156,104.20 is: 234,076.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,129.80 : 794,922.28 = 156,104.20 : x
  2. Step 2: Convert to fraction form
    530,129.80/794,922.28 = 156,104.20/x
  3. Step 3: Cross multiply
    530,129.80x = 794,922.28 × 156,104.20
  4. Step 4: Simplify right side
    530,129.80x = 124,090,706,581.58
  5. Step 5: Solve for x
    x = 124,090,706,581.58/530,129.80
  6. Step 6: Final answer
    x = 234,076.08

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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.