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Finding the Fourth Proportional to 132,956.72, 183,473.52 and 72,526.87

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Solution

The fourth proportional to 132,956.72, 183,473.52 and 72,526.87 is: 100,083.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,956.72 : 183,473.52 = 72,526.87 : x
  2. Step 2: Convert to fraction form
    132,956.72/183,473.52 = 72,526.87/x
  3. Step 3: Cross multiply
    132,956.72x = 183,473.52 × 72,526.87
  4. Step 4: Simplify right side
    132,956.72x = 13,306,760,133.48
  5. Step 5: Solve for x
    x = 13,306,760,133.48/132,956.72
  6. Step 6: Final answer
    x = 100,083.40

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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.