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Finding the Fourth Proportional to 132,654.70, 183,058.70 and 72,223.95

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Solution

The fourth proportional to 132,654.70, 183,058.70 and 72,223.95 is: 99,666.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,654.70 : 183,058.70 = 72,223.95 : x
  2. Step 2: Convert to fraction form
    132,654.70/183,058.70 = 72,223.95/x
  3. Step 3: Cross multiply
    132,654.70x = 183,058.70 × 72,223.95
  4. Step 4: Simplify right side
    132,654.70x = 13,221,223,127.48
  5. Step 5: Solve for x
    x = 13,221,223,127.48/132,654.70
  6. Step 6: Final answer
    x = 99,666.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.