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Finding the Fourth Proportional to 370,115.40, 555,302.70 and 159,904.20

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Solution

The fourth proportional to 370,115.40, 555,302.70 and 159,904.20 is: 239,912.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,115.40 : 555,302.70 = 159,904.20 : x
  2. Step 2: Convert to fraction form
    370,115.40/555,302.70 = 159,904.20/x
  3. Step 3: Cross multiply
    370,115.40x = 555,302.70 × 159,904.20
  4. Step 4: Simplify right side
    370,115.40x = 88,795,234,001.34
  5. Step 5: Solve for x
    x = 88,795,234,001.34/370,115.40
  6. Step 6: Final answer
    x = 239,912.29

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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.