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Finding the Fourth Proportional to 124,654.32, 172,029.96 and 68,070.96

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Solution

The fourth proportional to 124,654.32, 172,029.96 and 68,070.96 is: 93,941.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,654.32 : 172,029.96 = 68,070.96 : x
  2. Step 2: Convert to fraction form
    124,654.32/172,029.96 = 68,070.96/x
  3. Step 3: Cross multiply
    124,654.32x = 172,029.96 × 68,070.96
  4. Step 4: Simplify right side
    124,654.32x = 11,710,244,525.96
  5. Step 5: Solve for x
    x = 11,710,244,525.96/124,654.32
  6. Step 6: Final answer
    x = 93,941.75

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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.