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Finding the Fourth Proportional to 124,615.16, 171,968.02 and 68,026.52

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Solution

The fourth proportional to 124,615.16, 171,968.02 and 68,026.52 is: 93,876.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,615.16 : 171,968.02 = 68,026.52 : x
  2. Step 2: Convert to fraction form
    124,615.16/171,968.02 = 68,026.52/x
  3. Step 3: Cross multiply
    124,615.16x = 171,968.02 × 68,026.52
  4. Step 4: Simplify right side
    124,615.16x = 11,698,385,951.89
  5. Step 5: Solve for x
    x = 11,698,385,951.89/124,615.16
  6. Step 6: Final answer
    x = 93,876.11

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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.