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Finding the Fourth Proportional to 342,948.40, 514,422.60 and 93,630.40

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Solution

The fourth proportional to 342,948.40, 514,422.60 and 93,630.40 is: 140,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,948.40 : 514,422.60 = 93,630.40 : x
  2. Step 2: Convert to fraction form
    342,948.40/514,422.60 = 93,630.40/x
  3. Step 3: Cross multiply
    342,948.40x = 514,422.60 × 93,630.40
  4. Step 4: Simplify right side
    342,948.40x = 48,165,593,807.04
  5. Step 5: Solve for x
    x = 48,165,593,807.04/342,948.40
  6. Step 6: Final answer
    x = 140,445.60

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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.