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Finding the Fourth Proportional to 98,668.68, 147,986.52 and 35,475.92

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Solution

The fourth proportional to 98,668.68, 147,986.52 and 35,475.92 is: 53,207.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,668.68 : 147,986.52 = 35,475.92 : x
  2. Step 2: Convert to fraction form
    98,668.68/147,986.52 = 35,475.92/x
  3. Step 3: Cross multiply
    98,668.68x = 147,986.52 × 35,475.92
  4. Step 4: Simplify right side
    98,668.68x = 5,249,957,944.60
  5. Step 5: Solve for x
    x = 5,249,957,944.60/98,668.68
  6. Step 6: Final answer
    x = 53,207.95

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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.