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Finding the Fourth Proportional to 207,567.20, 310,694.70 and 148,518.20

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Solution

The fourth proportional to 207,567.20, 310,694.70 and 148,518.20 is: 222,307.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,567.20 : 310,694.70 = 148,518.20 : x
  2. Step 2: Convert to fraction form
    207,567.20/310,694.70 = 148,518.20/x
  3. Step 3: Cross multiply
    207,567.20x = 310,694.70 × 148,518.20
  4. Step 4: Simplify right side
    207,567.20x = 46,143,817,593.54
  5. Step 5: Solve for x
    x = 46,143,817,593.54/207,567.20
  6. Step 6: Final answer
    x = 222,307.85

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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.