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Finding the Fourth Proportional to 118,677.87, 163,775.34 and 64,962.42

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Solution

The fourth proportional to 118,677.87, 163,775.34 and 64,962.42 is: 89,648.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,677.87 : 163,775.34 = 64,962.42 : x
  2. Step 2: Convert to fraction form
    118,677.87/163,775.34 = 64,962.42/x
  3. Step 3: Cross multiply
    118,677.87x = 163,775.34 × 64,962.42
  4. Step 4: Simplify right side
    118,677.87x = 10,639,242,422.72
  5. Step 5: Solve for x
    x = 10,639,242,422.72/118,677.87
  6. Step 6: Final answer
    x = 89,648.07

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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.