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Finding the Fourth Proportional to 88,885.79, 133,335.78 and 29,721.77

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Solution

The fourth proportional to 88,885.79, 133,335.78 and 29,721.77 is: 44,585.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,885.79 : 133,335.78 = 29,721.77 : x
  2. Step 2: Convert to fraction form
    88,885.79/133,335.78 = 29,721.77/x
  3. Step 3: Cross multiply
    88,885.79x = 133,335.78 × 29,721.77
  4. Step 4: Simplify right side
    88,885.79x = 3,962,975,385.93
  5. Step 5: Solve for x
    x = 3,962,975,385.93/88,885.79
  6. Step 6: Final answer
    x = 44,585.03

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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.