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Finding the Fourth Proportional to 98,988.96, 148,488.48 and 28,873.56

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Solution

The fourth proportional to 98,988.96, 148,488.48 and 28,873.56 is: 43,311.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,988.96 : 148,488.48 = 28,873.56 : x
  2. Step 2: Convert to fraction form
    98,988.96/148,488.48 = 28,873.56/x
  3. Step 3: Cross multiply
    98,988.96x = 148,488.48 × 28,873.56
  4. Step 4: Simplify right side
    98,988.96x = 4,287,391,036.59
  5. Step 5: Solve for x
    x = 4,287,391,036.59/98,988.96
  6. Step 6: Final answer
    x = 43,311.81

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1.5x scale

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.