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Finding the Fourth Proportional to 348,551.68, 523,148.16 and 215,691.52

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Solution

The fourth proportional to 348,551.68, 523,148.16 and 215,691.52 is: 323,735.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,551.68 : 523,148.16 = 215,691.52 : x
  2. Step 2: Convert to fraction form
    348,551.68/523,148.16 = 215,691.52/x
  3. Step 3: Cross multiply
    348,551.68x = 523,148.16 × 215,691.52
  4. Step 4: Simplify right side
    348,551.68x = 112,838,621,815.60
  5. Step 5: Solve for x
    x = 112,838,621,815.60/348,551.68
  6. Step 6: Final answer
    x = 323,735.70

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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.