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Finding the Fourth Proportional to 108,345.80, 162,580.80 and 58,425.68

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Solution

The fourth proportional to 108,345.80, 162,580.80 and 58,425.68 is: 87,672.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,345.80 : 162,580.80 = 58,425.68 : x
  2. Step 2: Convert to fraction form
    108,345.80/162,580.80 = 58,425.68/x
  3. Step 3: Cross multiply
    108,345.80x = 162,580.80 × 58,425.68
  4. Step 4: Simplify right side
    108,345.80x = 9,498,893,794.94
  5. Step 5: Solve for x
    x = 9,498,893,794.94/108,345.80
  6. Step 6: Final answer
    x = 87,672.01

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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.