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Finding the Fourth Proportional to 118,281.84, 163,229.25 and 64,566.90

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Solution

The fourth proportional to 118,281.84, 163,229.25 and 64,566.90 is: 89,102.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,281.84 : 163,229.25 = 64,566.90 : x
  2. Step 2: Convert to fraction form
    118,281.84/163,229.25 = 64,566.90/x
  3. Step 3: Cross multiply
    118,281.84x = 163,229.25 × 64,566.90
  4. Step 4: Simplify right side
    118,281.84x = 10,539,207,296.21
  5. Step 5: Solve for x
    x = 10,539,207,296.21/118,281.84
  6. Step 6: Final answer
    x = 89,102.49

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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.