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Finding the Fourth Proportional to 79,248.54, 118,911.51 and 34,869.72

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Solution

The fourth proportional to 79,248.54, 118,911.51 and 34,869.72 is: 52,321.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,248.54 : 118,911.51 = 34,869.72 : x
  2. Step 2: Convert to fraction form
    79,248.54/118,911.51 = 34,869.72/x
  3. Step 3: Cross multiply
    79,248.54x = 118,911.51 × 34,869.72
  4. Step 4: Simplify right side
    79,248.54x = 4,146,411,058.48
  5. Step 5: Solve for x
    x = 4,146,411,058.48/79,248.54
  6. Step 6: Final answer
    x = 52,321.61

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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.