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Finding the Fourth Proportional to 98,798.64, 148,197.80 and 28,677.95

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Solution

The fourth proportional to 98,798.64, 148,197.80 and 28,677.95 is: 43,016.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,798.64 : 148,197.80 = 28,677.95 : x
  2. Step 2: Convert to fraction form
    98,798.64/148,197.80 = 28,677.95/x
  3. Step 3: Cross multiply
    98,798.64x = 148,197.80 × 28,677.95
  4. Step 4: Simplify right side
    98,798.64x = 4,250,008,984.96
  5. Step 5: Solve for x
    x = 4,250,008,984.96/98,798.64
  6. Step 6: Final answer
    x = 43,016.88

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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.