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Finding the Fourth Proportional to 132,750.79, 183,193.95 and 72,322.16

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Solution

The fourth proportional to 132,750.79, 183,193.95 and 72,322.16 is: 99,803.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,750.79 : 183,193.95 = 72,322.16 : x
  2. Step 2: Convert to fraction form
    132,750.79/183,193.95 = 72,322.16/x
  3. Step 3: Cross multiply
    132,750.79x = 183,193.95 × 72,322.16
  4. Step 4: Simplify right side
    132,750.79x = 13,248,982,162.93
  5. Step 5: Solve for x
    x = 13,248,982,162.93/132,750.79
  6. Step 6: Final answer
    x = 99,803.42

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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.