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Finding the Fourth Proportional to 457,301.80, 685,952.70 and 124,877.80

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Solution

The fourth proportional to 457,301.80, 685,952.70 and 124,877.80 is: 187,316.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,301.80 : 685,952.70 = 124,877.80 : x
  2. Step 2: Convert to fraction form
    457,301.80/685,952.70 = 124,877.80/x
  3. Step 3: Cross multiply
    457,301.80x = 685,952.70 × 124,877.80
  4. Step 4: Simplify right side
    457,301.80x = 85,660,264,080.06
  5. Step 5: Solve for x
    x = 85,660,264,080.06/457,301.80
  6. Step 6: Final answer
    x = 187,316.70

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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.