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Finding the Fourth Proportional to 298,720.17, 448,080.26 and 88,341.71

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Solution

The fourth proportional to 298,720.17, 448,080.26 and 88,341.71 is: 132,512.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,720.17 : 448,080.26 = 88,341.71 : x
  2. Step 2: Convert to fraction form
    298,720.17/448,080.26 = 88,341.71/x
  3. Step 3: Cross multiply
    298,720.17x = 448,080.26 × 88,341.71
  4. Step 4: Simplify right side
    298,720.17x = 39,584,173,703.53
  5. Step 5: Solve for x
    x = 39,584,173,703.53/298,720.17
  6. Step 6: Final answer
    x = 132,512.56

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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.