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Finding the Fourth Proportional to 239,870.76, 360,104.22 and 155,354.28

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Solution

The fourth proportional to 239,870.76, 360,104.22 and 155,354.28 is: 233,224.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,870.76 : 360,104.22 = 155,354.28 : x
  2. Step 2: Convert to fraction form
    239,870.76/360,104.22 = 155,354.28/x
  3. Step 3: Cross multiply
    239,870.76x = 360,104.22 × 155,354.28
  4. Step 4: Simplify right side
    239,870.76x = 55,943,731,823.06
  5. Step 5: Solve for x
    x = 55,943,731,823.06/239,870.76
  6. Step 6: Final answer
    x = 233,224.47

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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.