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Finding the Fourth Proportional to 70,854.75, 97,779.69 and 39,026.61

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Solution

The fourth proportional to 70,854.75, 97,779.69 and 39,026.61 is: 53,856.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,854.75 : 97,779.69 = 39,026.61 : x
  2. Step 2: Convert to fraction form
    70,854.75/97,779.69 = 39,026.61/x
  3. Step 3: Cross multiply
    70,854.75x = 97,779.69 × 39,026.61
  4. Step 4: Simplify right side
    70,854.75x = 3,816,009,827.55
  5. Step 5: Solve for x
    x = 3,816,009,827.55/70,854.75
  6. Step 6: Final answer
    x = 53,856.80

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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.