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Finding the Fourth Proportional to 181,261.39, 271,477.93 and 86,557.92

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Solution

The fourth proportional to 181,261.39, 271,477.93 and 86,557.92 is: 129,639.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,261.39 : 271,477.93 = 86,557.92 : x
  2. Step 2: Convert to fraction form
    181,261.39/271,477.93 = 86,557.92/x
  3. Step 3: Cross multiply
    181,261.39x = 271,477.93 × 86,557.92
  4. Step 4: Simplify right side
    181,261.39x = 23,498,564,946.71
  5. Step 5: Solve for x
    x = 23,498,564,946.71/181,261.39
  6. Step 6: Final answer
    x = 129,639.11

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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.