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Finding the Fourth Proportional to 207,264.36, 310,820.40 and 74,108.52

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Solution

The fourth proportional to 207,264.36, 310,820.40 and 74,108.52 is: 111,135.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,264.36 : 310,820.40 = 74,108.52 : x
  2. Step 2: Convert to fraction form
    207,264.36/310,820.40 = 74,108.52/x
  3. Step 3: Cross multiply
    207,264.36x = 310,820.40 × 74,108.52
  4. Step 4: Simplify right side
    207,264.36x = 23,034,439,829.81
  5. Step 5: Solve for x
    x = 23,034,439,829.81/207,264.36
  6. Step 6: Final answer
    x = 111,135.56

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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.