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Finding the Fourth Proportional to 124,886.32, 172,363.48 and 92,833.82

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Solution

The fourth proportional to 124,886.32, 172,363.48 and 92,833.82 is: 128,125.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,886.32 : 172,363.48 = 92,833.82 : x
  2. Step 2: Convert to fraction form
    124,886.32/172,363.48 = 92,833.82/x
  3. Step 3: Cross multiply
    124,886.32x = 172,363.48 × 92,833.82
  4. Step 4: Simplify right side
    124,886.32x = 16,001,160,276.89
  5. Step 5: Solve for x
    x = 16,001,160,276.89/124,886.32
  6. Step 6: Final answer
    x = 128,125.80

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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.