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Finding the Fourth Proportional to 239,466, 359,200.80 and 106,310.40

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Solution

The fourth proportional to 239,466, 359,200.80 and 106,310.40 is: 159,466.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,466 : 359,200.80 = 106,310.40 : x
  2. Step 2: Convert to fraction form
    239,466/359,200.80 = 106,310.40/x
  3. Step 3: Cross multiply
    239,466x = 359,200.80 × 106,310.40
  4. Step 4: Simplify right side
    239,466x = 38,186,780,728.32
  5. Step 5: Solve for x
    x = 38,186,780,728.32/239,466
  6. Step 6: Final answer
    x = 159,466.40

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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.