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Finding the Fourth Proportional to 119,551.12, 165,092.52 and 74,916.88

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Solution

The fourth proportional to 119,551.12, 165,092.52 and 74,916.88 is: 103,455.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,551.12 : 165,092.52 = 74,916.88 : x
  2. Step 2: Convert to fraction form
    119,551.12/165,092.52 = 74,916.88/x
  3. Step 3: Cross multiply
    119,551.12x = 165,092.52 × 74,916.88
  4. Step 4: Simplify right side
    119,551.12x = 12,368,216,509.74
  5. Step 5: Solve for x
    x = 12,368,216,509.74/119,551.12
  6. Step 6: Final answer
    x = 103,455.46

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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.