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Finding the Fourth Proportional to 98,879.40, 148,303.91 and 32,319.88

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Solution

The fourth proportional to 98,879.40, 148,303.91 and 32,319.88 is: 48,474.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,879.40 : 148,303.91 = 32,319.88 : x
  2. Step 2: Convert to fraction form
    98,879.40/148,303.91 = 32,319.88/x
  3. Step 3: Cross multiply
    98,879.40x = 148,303.91 × 32,319.88
  4. Step 4: Simplify right side
    98,879.40x = 4,793,164,284.77
  5. Step 5: Solve for x
    x = 4,793,164,284.77/98,879.40
  6. Step 6: Final answer
    x = 48,474.85

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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.