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Finding the Fourth Proportional to 109,179.55, 163,776.89 and 42,597.55

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Solution

The fourth proportional to 109,179.55, 163,776.89 and 42,597.55 is: 63,899.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,179.55 : 163,776.89 = 42,597.55 : x
  2. Step 2: Convert to fraction form
    109,179.55/163,776.89 = 42,597.55/x
  3. Step 3: Cross multiply
    109,179.55x = 163,776.89 × 42,597.55
  4. Step 4: Simplify right side
    109,179.55x = 6,976,494,260.62
  5. Step 5: Solve for x
    x = 6,976,494,260.62/109,179.55
  6. Step 6: Final answer
    x = 63,899.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.