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Finding the Fourth Proportional to 118,338.66, 163,308.42 and 64,624.32

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Solution

The fourth proportional to 118,338.66, 163,308.42 and 64,624.32 is: 89,182.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,338.66 : 163,308.42 = 64,624.32 : x
  2. Step 2: Convert to fraction form
    118,338.66/163,308.42 = 64,624.32/x
  3. Step 3: Cross multiply
    118,338.66x = 163,308.42 × 64,624.32
  4. Step 4: Simplify right side
    118,338.66x = 10,553,695,592.77
  5. Step 5: Solve for x
    x = 10,553,695,592.77/118,338.66
  6. Step 6: Final answer
    x = 89,182.15

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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.