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Finding the Fourth Proportional to 224,456.40, 309,749.48 and 123,854.32

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Solution

The fourth proportional to 224,456.40, 309,749.48 and 123,854.32 is: 170,918.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,456.40 : 309,749.48 = 123,854.32 : x
  2. Step 2: Convert to fraction form
    224,456.40/309,749.48 = 123,854.32/x
  3. Step 3: Cross multiply
    224,456.40x = 309,749.48 × 123,854.32
  4. Step 4: Simplify right side
    224,456.40x = 38,363,811,215.75
  5. Step 5: Solve for x
    x = 38,363,811,215.75/224,456.40
  6. Step 6: Final answer
    x = 170,918.77

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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.