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Finding the Fourth Proportional to 132,482.89, 182,821.13 and 72,053.50

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Solution

The fourth proportional to 132,482.89, 182,821.13 and 72,053.50 is: 99,430.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,482.89 : 182,821.13 = 72,053.50 : x
  2. Step 2: Convert to fraction form
    132,482.89/182,821.13 = 72,053.50/x
  3. Step 3: Cross multiply
    132,482.89x = 182,821.13 × 72,053.50
  4. Step 4: Simplify right side
    132,482.89x = 13,172,901,883.47
  5. Step 5: Solve for x
    x = 13,172,901,883.47/132,482.89
  6. Step 6: Final answer
    x = 99,430.97

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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.