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Finding the Fourth Proportional to 292,660.62, 438,969.06 and 105,672.12

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Solution

The fourth proportional to 292,660.62, 438,969.06 and 105,672.12 is: 158,500.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,660.62 : 438,969.06 = 105,672.12 : x
  2. Step 2: Convert to fraction form
    292,660.62/438,969.06 = 105,672.12/x
  3. Step 3: Cross multiply
    292,660.62x = 438,969.06 × 105,672.12
  4. Step 4: Simplify right side
    292,660.62x = 46,386,791,184.61
  5. Step 5: Solve for x
    x = 46,386,791,184.61/292,660.62
  6. Step 6: Final answer
    x = 158,500.28

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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.