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Finding the Fourth Proportional to 124,648.56, 186,861.84 and 45,744.48

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Solution

The fourth proportional to 124,648.56, 186,861.84 and 45,744.48 is: 68,575.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,648.56 : 186,861.84 = 45,744.48 : x
  2. Step 2: Convert to fraction form
    124,648.56/186,861.84 = 45,744.48/x
  3. Step 3: Cross multiply
    124,648.56x = 186,861.84 × 45,744.48
  4. Step 4: Simplify right side
    124,648.56x = 8,547,897,702.64
  5. Step 5: Solve for x
    x = 8,547,897,702.64/124,648.56
  6. Step 6: Final answer
    x = 68,575.98

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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.