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Finding the Fourth Proportional to 162,642.80, 243,964.20 and 62,807.60

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Solution

The fourth proportional to 162,642.80, 243,964.20 and 62,807.60 is: 94,211.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,642.80 : 243,964.20 = 62,807.60 : x
  2. Step 2: Convert to fraction form
    162,642.80/243,964.20 = 62,807.60/x
  3. Step 3: Cross multiply
    162,642.80x = 243,964.20 × 62,807.60
  4. Step 4: Simplify right side
    162,642.80x = 15,322,805,887.92
  5. Step 5: Solve for x
    x = 15,322,805,887.92/162,642.80
  6. Step 6: Final answer
    x = 94,211.40

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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.