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Finding the Fourth Proportional to 456,870.80, 685,306.20 and 124,446.80

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Solution

The fourth proportional to 456,870.80, 685,306.20 and 124,446.80 is: 186,670.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,870.80 : 685,306.20 = 124,446.80 : x
  2. Step 2: Convert to fraction form
    456,870.80/685,306.20 = 124,446.80/x
  3. Step 3: Cross multiply
    456,870.80x = 685,306.20 × 124,446.80
  4. Step 4: Simplify right side
    456,870.80x = 85,284,163,610.16
  5. Step 5: Solve for x
    x = 85,284,163,610.16/456,870.80
  6. Step 6: Final answer
    x = 186,670.20

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Similar ratio
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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.