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Finding the Fourth Proportional to 218,662.38, 301,650.90 and 127,962.72

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Solution

The fourth proportional to 218,662.38, 301,650.90 and 127,962.72 is: 176,528.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,662.38 : 301,650.90 = 127,962.72 : x
  2. Step 2: Convert to fraction form
    218,662.38/301,650.90 = 127,962.72/x
  3. Step 3: Cross multiply
    218,662.38x = 301,650.90 × 127,962.72
  4. Step 4: Simplify right side
    218,662.38x = 38,600,069,654.45
  5. Step 5: Solve for x
    x = 38,600,069,654.45/218,662.38
  6. Step 6: Final answer
    x = 176,528.17

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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.