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Finding the Fourth Proportional to 162,649.40, 243,901.20 and 73,857.20

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Solution

The fourth proportional to 162,649.40, 243,901.20 and 73,857.20 is: 110,752.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,649.40 : 243,901.20 = 73,857.20 : x
  2. Step 2: Convert to fraction form
    162,649.40/243,901.20 = 73,857.20/x
  3. Step 3: Cross multiply
    162,649.40x = 243,901.20 × 73,857.20
  4. Step 4: Simplify right side
    162,649.40x = 18,013,859,708.64
  5. Step 5: Solve for x
    x = 18,013,859,708.64/162,649.40
  6. Step 6: Final answer
    x = 110,752.70

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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.