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Finding the Fourth Proportional to 88,030.90, 132,064.74 and 28,861.90

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Solution

The fourth proportional to 88,030.90, 132,064.74 and 28,861.90 is: 43,298.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,030.90 : 132,064.74 = 28,861.90 : x
  2. Step 2: Convert to fraction form
    88,030.90/132,064.74 = 28,861.90/x
  3. Step 3: Cross multiply
    88,030.90x = 132,064.74 × 28,861.90
  4. Step 4: Simplify right side
    88,030.90x = 3,811,639,319.41
  5. Step 5: Solve for x
    x = 3,811,639,319.41/88,030.90
  6. Step 6: Final answer
    x = 43,298.88

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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.