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Finding the Fourth Proportional to 207,254.76, 310,849.02 and 74,110.20

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Solution

The fourth proportional to 207,254.76, 310,849.02 and 74,110.20 is: 111,153.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,254.76 : 310,849.02 = 74,110.20 : x
  2. Step 2: Convert to fraction form
    207,254.76/310,849.02 = 74,110.20/x
  3. Step 3: Cross multiply
    207,254.76x = 310,849.02 × 74,110.20
  4. Step 4: Simplify right side
    207,254.76x = 23,037,083,042.00
  5. Step 5: Solve for x
    x = 23,037,083,042.00/207,254.76
  6. Step 6: Final answer
    x = 111,153.46

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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.