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Finding the Fourth Proportional to 207,583.20, 310,718.70 and 148,534.20

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Solution

The fourth proportional to 207,583.20, 310,718.70 and 148,534.20 is: 222,331.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,583.20 : 310,718.70 = 148,534.20 : x
  2. Step 2: Convert to fraction form
    207,583.20/310,718.70 = 148,534.20/x
  3. Step 3: Cross multiply
    207,583.20x = 310,718.70 × 148,534.20
  4. Step 4: Simplify right side
    207,583.20x = 46,152,353,529.54
  5. Step 5: Solve for x
    x = 46,152,353,529.54/207,583.20
  6. Step 6: Final answer
    x = 222,331.83

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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.