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Finding the Fourth Proportional to 108,594.40, 162,907.80 and 38,468.20

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Solution

The fourth proportional to 108,594.40, 162,907.80 and 38,468.20 is: 57,708.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,594.40 : 162,907.80 = 38,468.20 : x
  2. Step 2: Convert to fraction form
    108,594.40/162,907.80 = 38,468.20/x
  3. Step 3: Cross multiply
    108,594.40x = 162,907.80 × 38,468.20
  4. Step 4: Simplify right side
    108,594.40x = 6,266,769,831.96
  5. Step 5: Solve for x
    x = 6,266,769,831.96/108,594.40
  6. Step 6: Final answer
    x = 57,708.04

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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.