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Finding the Fourth Proportional to 474,883.52, 712,362.12 and 137,929.60

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Solution

The fourth proportional to 474,883.52, 712,362.12 and 137,929.60 is: 206,905.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,883.52 : 712,362.12 = 137,929.60 : x
  2. Step 2: Convert to fraction form
    474,883.52/712,362.12 = 137,929.60/x
  3. Step 3: Cross multiply
    474,883.52x = 712,362.12 × 137,929.60
  4. Step 4: Simplify right side
    474,883.52x = 98,255,822,266.75
  5. Step 5: Solve for x
    x = 98,255,822,266.75/474,883.52
  6. Step 6: Final answer
    x = 206,905.10

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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.