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Finding the Fourth Proportional to 618,807.03, 928,211.40 and 169,531.80

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Solution

The fourth proportional to 618,807.03, 928,211.40 and 169,531.80 is: 254,297.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,807.03 : 928,211.40 = 169,531.80 : x
  2. Step 2: Convert to fraction form
    618,807.03/928,211.40 = 169,531.80/x
  3. Step 3: Cross multiply
    618,807.03x = 928,211.40 × 169,531.80
  4. Step 4: Simplify right side
    618,807.03x = 157,361,349,422.52
  5. Step 5: Solve for x
    x = 157,361,349,422.52/618,807.03
  6. Step 6: Final answer
    x = 254,297.93

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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.