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Finding the Fourth Proportional to 315,043.90, 472,402.65 and 93,399.10

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Solution

The fourth proportional to 315,043.90, 472,402.65 and 93,399.10 is: 140,050.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,043.90 : 472,402.65 = 93,399.10 : x
  2. Step 2: Convert to fraction form
    315,043.90/472,402.65 = 93,399.10/x
  3. Step 3: Cross multiply
    315,043.90x = 472,402.65 × 93,399.10
  4. Step 4: Simplify right side
    315,043.90x = 44,121,982,347.62
  5. Step 5: Solve for x
    x = 44,121,982,347.62/315,043.90
  6. Step 6: Final answer
    x = 140,050.27

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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.