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Finding the Fourth Proportional to 192,543.60, 288,957.32 and 91,341.98

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Solution

The fourth proportional to 192,543.60, 288,957.32 and 91,341.98 is: 137,080.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,543.60 : 288,957.32 = 91,341.98 : x
  2. Step 2: Convert to fraction form
    192,543.60/288,957.32 = 91,341.98/x
  3. Step 3: Cross multiply
    192,543.60x = 288,957.32 × 91,341.98
  4. Step 4: Simplify right side
    192,543.60x = 26,393,933,744.29
  5. Step 5: Solve for x
    x = 26,393,933,744.29/192,543.60
  6. Step 6: Final answer
    x = 137,080.30

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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.