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Finding the Fourth Proportional to 163,891.20, 245,836.80 and 58,713.60

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Solution

The fourth proportional to 163,891.20, 245,836.80 and 58,713.60 is: 88,070.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,891.20 : 245,836.80 = 58,713.60 : x
  2. Step 2: Convert to fraction form
    163,891.20/245,836.80 = 58,713.60/x
  3. Step 3: Cross multiply
    163,891.20x = 245,836.80 × 58,713.60
  4. Step 4: Simplify right side
    163,891.20x = 14,433,963,540.48
  5. Step 5: Solve for x
    x = 14,433,963,540.48/163,891.20
  6. Step 6: Final answer
    x = 88,070.40

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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.