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Finding the Fourth Proportional to 118,080.69, 162,948.10 and 64,366.75

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Solution

The fourth proportional to 118,080.69, 162,948.10 and 64,366.75 is: 88,824.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,080.69 : 162,948.10 = 64,366.75 : x
  2. Step 2: Convert to fraction form
    118,080.69/162,948.10 = 64,366.75/x
  3. Step 3: Cross multiply
    118,080.69x = 162,948.10 × 64,366.75
  4. Step 4: Simplify right side
    118,080.69x = 10,488,439,615.68
  5. Step 5: Solve for x
    x = 10,488,439,615.68/118,080.69
  6. Step 6: Final answer
    x = 88,824.34

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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.