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Finding the Fourth Proportional to 118,512.71, 163,547.52 and 64,797.71

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Solution

The fourth proportional to 118,512.71, 163,547.52 and 64,797.71 is: 89,420.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,512.71 : 163,547.52 = 64,797.71 : x
  2. Step 2: Convert to fraction form
    118,512.71/163,547.52 = 64,797.71/x
  3. Step 3: Cross multiply
    118,512.71x = 163,547.52 × 64,797.71
  4. Step 4: Simplify right side
    118,512.71x = 10,597,504,772.18
  5. Step 5: Solve for x
    x = 10,597,504,772.18/118,512.71
  6. Step 6: Final answer
    x = 89,420.83

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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.