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Finding the Fourth Proportional to 292,407.76, 438,520.92 and 105,394.96

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Solution

The fourth proportional to 292,407.76, 438,520.92 and 105,394.96 is: 158,059.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,407.76 : 438,520.92 = 105,394.96 : x
  2. Step 2: Convert to fraction form
    292,407.76/438,520.92 = 105,394.96/x
  3. Step 3: Cross multiply
    292,407.76x = 438,520.92 × 105,394.96
  4. Step 4: Simplify right side
    292,407.76x = 46,217,894,822.56
  5. Step 5: Solve for x
    x = 46,217,894,822.56/292,407.76
  6. Step 6: Final answer
    x = 158,059.74

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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.