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Finding the Fourth Proportional to 162,901.50, 224,810.16 and 91,278.88

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Solution

The fourth proportional to 162,901.50, 224,810.16 and 91,278.88 is: 125,968.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,901.50 : 224,810.16 = 91,278.88 : x
  2. Step 2: Convert to fraction form
    162,901.50/224,810.16 = 91,278.88/x
  3. Step 3: Cross multiply
    162,901.50x = 224,810.16 × 91,278.88
  4. Step 4: Simplify right side
    162,901.50x = 20,520,419,617.42
  5. Step 5: Solve for x
    x = 20,520,419,617.42/162,901.50
  6. Step 6: Final answer
    x = 125,968.27

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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.