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Finding the Fourth Proportional to 384,891.88, 577,368.60 and 132,070.63

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Solution

The fourth proportional to 384,891.88, 577,368.60 and 132,070.63 is: 198,116.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,891.88 : 577,368.60 = 132,070.63 : x
  2. Step 2: Convert to fraction form
    384,891.88/577,368.60 = 132,070.63/x
  3. Step 3: Cross multiply
    384,891.88x = 577,368.60 × 132,070.63
  4. Step 4: Simplify right side
    384,891.88x = 76,253,434,744.22
  5. Step 5: Solve for x
    x = 76,253,434,744.22/384,891.88
  6. Step 6: Final answer
    x = 198,116.51

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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.