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Finding the Fourth Proportional to 98,402.45, 147,606.91 and 31,843.13

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Solution

The fourth proportional to 98,402.45, 147,606.91 and 31,843.13 is: 47,765.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,402.45 : 147,606.91 = 31,843.13 : x
  2. Step 2: Convert to fraction form
    98,402.45/147,606.91 = 31,843.13/x
  3. Step 3: Cross multiply
    98,402.45x = 147,606.91 × 31,843.13
  4. Step 4: Simplify right side
    98,402.45x = 4,700,265,206.39
  5. Step 5: Solve for x
    x = 4,700,265,206.39/98,402.45
  6. Step 6: Final answer
    x = 47,765.74

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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.