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Finding the Fourth Proportional to 132,468.59, 182,807.53 and 72,039.89

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Solution

The fourth proportional to 132,468.59, 182,807.53 and 72,039.89 is: 99,415.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,468.59 : 182,807.53 = 72,039.89 : x
  2. Step 2: Convert to fraction form
    132,468.59/182,807.53 = 72,039.89/x
  3. Step 3: Cross multiply
    132,468.59x = 182,807.53 × 72,039.89
  4. Step 4: Simplify right side
    132,468.59x = 13,169,434,629.29
  5. Step 5: Solve for x
    x = 13,169,434,629.29/132,468.59
  6. Step 6: Final answer
    x = 99,415.52

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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.