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Finding the Fourth Proportional to 295,155.72, 442,470.60 and 108,123.48

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Solution

The fourth proportional to 295,155.72, 442,470.60 and 108,123.48 is: 162,088.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,155.72 : 442,470.60 = 108,123.48 : x
  2. Step 2: Convert to fraction form
    295,155.72/442,470.60 = 108,123.48/x
  3. Step 3: Cross multiply
    295,155.72x = 442,470.60 × 108,123.48
  4. Step 4: Simplify right side
    295,155.72x = 47,841,461,069.69
  5. Step 5: Solve for x
    x = 47,841,461,069.69/295,155.72
  6. Step 6: Final answer
    x = 162,088.88

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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.