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Finding the Fourth Proportional to 239,980.50, 360,036.27 and 105,020.04

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Solution

The fourth proportional to 239,980.50, 360,036.27 and 105,020.04 is: 157,558.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,980.50 : 360,036.27 = 105,020.04 : x
  2. Step 2: Convert to fraction form
    239,980.50/360,036.27 = 105,020.04/x
  3. Step 3: Cross multiply
    239,980.50x = 360,036.27 × 105,020.04
  4. Step 4: Simplify right side
    239,980.50x = 37,811,023,476.85
  5. Step 5: Solve for x
    x = 37,811,023,476.85/239,980.50
  6. Step 6: Final answer
    x = 157,558.73

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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.