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Finding the Fourth Proportional to 98,274.88, 147,446.90 and 48,390.02

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Solution

The fourth proportional to 98,274.88, 147,446.90 and 48,390.02 is: 72,602.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,274.88 : 147,446.90 = 48,390.02 : x
  2. Step 2: Convert to fraction form
    98,274.88/147,446.90 = 48,390.02/x
  3. Step 3: Cross multiply
    98,274.88x = 147,446.90 × 48,390.02
  4. Step 4: Simplify right side
    98,274.88x = 7,134,957,823.68
  5. Step 5: Solve for x
    x = 7,134,957,823.68/98,274.88
  6. Step 6: Final answer
    x = 72,602.05

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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.