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Finding the Fourth Proportional to 238,117.20, 357,175.80 and 104,928.90

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Solution

The fourth proportional to 238,117.20, 357,175.80 and 104,928.90 is: 157,393.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,117.20 : 357,175.80 = 104,928.90 : x
  2. Step 2: Convert to fraction form
    238,117.20/357,175.80 = 104,928.90/x
  3. Step 3: Cross multiply
    238,117.20x = 357,175.80 × 104,928.90
  4. Step 4: Simplify right side
    238,117.20x = 37,478,063,800.62
  5. Step 5: Solve for x
    x = 37,478,063,800.62/238,117.20
  6. Step 6: Final answer
    x = 157,393.35

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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.