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Finding the Fourth Proportional to 239,656.08, 359,484.24 and 81,886.08

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Solution

The fourth proportional to 239,656.08, 359,484.24 and 81,886.08 is: 122,829.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,656.08 : 359,484.24 = 81,886.08 : x
  2. Step 2: Convert to fraction form
    239,656.08/359,484.24 = 81,886.08/x
  3. Step 3: Cross multiply
    239,656.08x = 359,484.24 × 81,886.08
  4. Step 4: Simplify right side
    239,656.08x = 29,436,755,235.38
  5. Step 5: Solve for x
    x = 29,436,755,235.38/239,656.08
  6. Step 6: Final answer
    x = 122,829.16

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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.