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Finding the Fourth Proportional to 175,959.20, 263,938.80 and 42,838.40

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Solution

The fourth proportional to 175,959.20, 263,938.80 and 42,838.40 is: 64,257.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,959.20 : 263,938.80 = 42,838.40 : x
  2. Step 2: Convert to fraction form
    175,959.20/263,938.80 = 42,838.40/x
  3. Step 3: Cross multiply
    175,959.20x = 263,938.80 × 42,838.40
  4. Step 4: Simplify right side
    175,959.20x = 11,306,715,889.92
  5. Step 5: Solve for x
    x = 11,306,715,889.92/175,959.20
  6. Step 6: Final answer
    x = 64,257.60

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1.5x scale

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.