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Finding the Fourth Proportional to 367,629.30, 551,443.95 and 101,430.90

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Solution

The fourth proportional to 367,629.30, 551,443.95 and 101,430.90 is: 152,146.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,629.30 : 551,443.95 = 101,430.90 : x
  2. Step 2: Convert to fraction form
    367,629.30/551,443.95 = 101,430.90/x
  3. Step 3: Cross multiply
    367,629.30x = 551,443.95 × 101,430.90
  4. Step 4: Simplify right side
    367,629.30x = 55,933,456,148.06
  5. Step 5: Solve for x
    x = 55,933,456,148.06/367,629.30
  6. Step 6: Final answer
    x = 152,146.35

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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.