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Finding the Fourth Proportional to 70,103.30, 96,741.86 and 43,235.06

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Solution

The fourth proportional to 70,103.30, 96,741.86 and 43,235.06 is: 59,663.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,103.30 : 96,741.86 = 43,235.06 : x
  2. Step 2: Convert to fraction form
    70,103.30/96,741.86 = 43,235.06/x
  3. Step 3: Cross multiply
    70,103.30x = 96,741.86 × 43,235.06
  4. Step 4: Simplify right side
    70,103.30x = 4,182,639,421.73
  5. Step 5: Solve for x
    x = 4,182,639,421.73/70,103.30
  6. Step 6: Final answer
    x = 59,663.95

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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.