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Finding the Fourth Proportional to 247,079.40, 370,791.90 and 106,938.60

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Solution

The fourth proportional to 247,079.40, 370,791.90 and 106,938.60 is: 160,482.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,079.40 : 370,791.90 = 106,938.60 : x
  2. Step 2: Convert to fraction form
    247,079.40/370,791.90 = 106,938.60/x
  3. Step 3: Cross multiply
    247,079.40x = 370,791.90 × 106,938.60
  4. Step 4: Simplify right side
    247,079.40x = 39,651,966,677.34
  5. Step 5: Solve for x
    x = 39,651,966,677.34/247,079.40
  6. Step 6: Final answer
    x = 160,482.69

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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.