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Finding the Fourth Proportional to 125,293.54, 172,902.96 and 70,844.82

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Solution

The fourth proportional to 125,293.54, 172,902.96 and 70,844.82 is: 97,764.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,293.54 : 172,902.96 = 70,844.82 : x
  2. Step 2: Convert to fraction form
    125,293.54/172,902.96 = 70,844.82/x
  3. Step 3: Cross multiply
    125,293.54x = 172,902.96 × 70,844.82
  4. Step 4: Simplify right side
    125,293.54x = 12,249,279,078.67
  5. Step 5: Solve for x
    x = 12,249,279,078.67/125,293.54
  6. Step 6: Final answer
    x = 97,764.65

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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.