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Finding the Fourth Proportional to 228,041.80, 342,062.70 and 192,612.40

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Solution

The fourth proportional to 228,041.80, 342,062.70 and 192,612.40 is: 288,918.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,041.80 : 342,062.70 = 192,612.40 : x
  2. Step 2: Convert to fraction form
    228,041.80/342,062.70 = 192,612.40/x
  3. Step 3: Cross multiply
    228,041.80x = 342,062.70 × 192,612.40
  4. Step 4: Simplify right side
    228,041.80x = 65,885,517,597.48
  5. Step 5: Solve for x
    x = 65,885,517,597.48/228,041.80
  6. Step 6: Final answer
    x = 288,918.60

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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.