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Finding the Fourth Proportional to 119,915.52, 165,482.52 and 66,200.60

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Solution

The fourth proportional to 119,915.52, 165,482.52 and 66,200.60 is: 91,356.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,915.52 : 165,482.52 = 66,200.60 : x
  2. Step 2: Convert to fraction form
    119,915.52/165,482.52 = 66,200.60/x
  3. Step 3: Cross multiply
    119,915.52x = 165,482.52 × 66,200.60
  4. Step 4: Simplify right side
    119,915.52x = 10,955,042,113.51
  5. Step 5: Solve for x
    x = 10,955,042,113.51/119,915.52
  6. Step 6: Final answer
    x = 91,356.33

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1.5x scale

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.