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Finding the Fourth Proportional to 342,725.28, 514,073.16 and 93,407.28

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Solution

The fourth proportional to 342,725.28, 514,073.16 and 93,407.28 is: 140,106.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,725.28 : 514,073.16 = 93,407.28 : x
  2. Step 2: Convert to fraction form
    342,725.28/514,073.16 = 93,407.28/x
  3. Step 3: Cross multiply
    342,725.28x = 514,073.16 × 93,407.28
  4. Step 4: Simplify right side
    342,725.28x = 48,018,175,596.60
  5. Step 5: Solve for x
    x = 48,018,175,596.60/342,725.28
  6. Step 6: Final answer
    x = 140,106.90

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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.