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Finding the Fourth Proportional to 292,659.58, 438,723.14 and 112,630.20

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Solution

The fourth proportional to 292,659.58, 438,723.14 and 112,630.20 is: 168,842.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,659.58 : 438,723.14 = 112,630.20 : x
  2. Step 2: Convert to fraction form
    292,659.58/438,723.14 = 112,630.20/x
  3. Step 3: Cross multiply
    292,659.58x = 438,723.14 × 112,630.20
  4. Step 4: Simplify right side
    292,659.58x = 49,413,472,794.47
  5. Step 5: Solve for x
    x = 49,413,472,794.47/292,659.58
  6. Step 6: Final answer
    x = 168,842.83

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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.