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Finding the Fourth Proportional to 98,433.68, 147,651.12 and 31,873.52

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Solution

The fourth proportional to 98,433.68, 147,651.12 and 31,873.52 is: 47,810.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,433.68 : 147,651.12 = 31,873.52 : x
  2. Step 2: Convert to fraction form
    98,433.68/147,651.12 = 31,873.52/x
  3. Step 3: Cross multiply
    98,433.68x = 147,651.12 × 31,873.52
  4. Step 4: Simplify right side
    98,433.68x = 4,706,160,926.34
  5. Step 5: Solve for x
    x = 4,706,160,926.34/98,433.68
  6. Step 6: Final answer
    x = 47,810.47

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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.