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Finding the Fourth Proportional to 298,417.44, 447,638.52 and 88,055.38

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Solution

The fourth proportional to 298,417.44, 447,638.52 and 88,055.38 is: 132,086.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,417.44 : 447,638.52 = 88,055.38 : x
  2. Step 2: Convert to fraction form
    298,417.44/447,638.52 = 88,055.38/x
  3. Step 3: Cross multiply
    298,417.44x = 447,638.52 × 88,055.38
  4. Step 4: Simplify right side
    298,417.44x = 39,416,979,981.24
  5. Step 5: Solve for x
    x = 39,416,979,981.24/298,417.44
  6. Step 6: Final answer
    x = 132,086.72

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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.