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Finding the Fourth Proportional to 162,641.40, 243,889.20 and 73,849.20

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Solution

The fourth proportional to 162,641.40, 243,889.20 and 73,849.20 is: 110,740.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,641.40 : 243,889.20 = 73,849.20 : x
  2. Step 2: Convert to fraction form
    162,641.40/243,889.20 = 73,849.20/x
  3. Step 3: Cross multiply
    162,641.40x = 243,889.20 × 73,849.20
  4. Step 4: Simplify right side
    162,641.40x = 18,011,022,308.64
  5. Step 5: Solve for x
    x = 18,011,022,308.64/162,641.40
  6. Step 6: Final answer
    x = 110,740.70

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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.