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Finding the Fourth Proportional to 132,964.80, 183,495.52 and 76,387.52

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Solution

The fourth proportional to 132,964.80, 183,495.52 and 76,387.52 is: 105,417.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,964.80 : 183,495.52 = 76,387.52 : x
  2. Step 2: Convert to fraction form
    132,964.80/183,495.52 = 76,387.52/x
  3. Step 3: Cross multiply
    132,964.80x = 183,495.52 × 76,387.52
  4. Step 4: Simplify right side
    132,964.80x = 14,016,767,703.91
  5. Step 5: Solve for x
    x = 14,016,767,703.91/132,964.80
  6. Step 6: Final answer
    x = 105,417.13

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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.