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Finding the Fourth Proportional to 119,915.52, 165,482.48 and 66,200.48

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Solution

The fourth proportional to 119,915.52, 165,482.48 and 66,200.48 is: 91,356.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,915.52 : 165,482.48 = 66,200.48 : x
  2. Step 2: Convert to fraction form
    119,915.52/165,482.48 = 66,200.48/x
  3. Step 3: Cross multiply
    119,915.52x = 165,482.48 × 66,200.48
  4. Step 4: Simplify right side
    119,915.52x = 10,955,019,607.59
  5. Step 5: Solve for x
    x = 10,955,019,607.59/119,915.52
  6. Step 6: Final answer
    x = 91,356.14

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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.