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Finding the Fourth Proportional to 173,228.50, 239,055.35 and 97,781.86

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Solution

The fourth proportional to 173,228.50, 239,055.35 and 97,781.86 is: 134,938.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,228.50 : 239,055.35 = 97,781.86 : x
  2. Step 2: Convert to fraction form
    173,228.50/239,055.35 = 97,781.86/x
  3. Step 3: Cross multiply
    173,228.50x = 239,055.35 × 97,781.86
  4. Step 4: Simplify right side
    173,228.50x = 23,375,276,277.04
  5. Step 5: Solve for x
    x = 23,375,276,277.04/173,228.50
  6. Step 6: Final answer
    x = 134,938.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.