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Finding the Fourth Proportional to 84,252.96, 126,316.96 and 39,827.79

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Solution

The fourth proportional to 84,252.96, 126,316.96 and 39,827.79 is: 59,712.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,252.96 : 126,316.96 = 39,827.79 : x
  2. Step 2: Convert to fraction form
    84,252.96/126,316.96 = 39,827.79/x
  3. Step 3: Cross multiply
    84,252.96x = 126,316.96 × 39,827.79
  4. Step 4: Simplify right side
    84,252.96x = 5,030,925,356.32
  5. Step 5: Solve for x
    x = 5,030,925,356.32/84,252.96
  6. Step 6: Final answer
    x = 59,712.15

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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.