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Finding the Fourth Proportional to 108,624.80, 162,937.20 and 46,287.20

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Solution

The fourth proportional to 108,624.80, 162,937.20 and 46,287.20 is: 69,430.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,624.80 : 162,937.20 = 46,287.20 : x
  2. Step 2: Convert to fraction form
    108,624.80/162,937.20 = 46,287.20/x
  3. Step 3: Cross multiply
    108,624.80x = 162,937.20 × 46,287.20
  4. Step 4: Simplify right side
    108,624.80x = 7,541,906,763.84
  5. Step 5: Solve for x
    x = 7,541,906,763.84/108,624.80
  6. Step 6: Final answer
    x = 69,430.80

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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.