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Finding the Fourth Proportional to 207,272.90, 310,913.02 and 74,248.62

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Solution

The fourth proportional to 207,272.90, 310,913.02 and 74,248.62 is: 111,374.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,272.90 : 310,913.02 = 74,248.62 : x
  2. Step 2: Convert to fraction form
    207,272.90/310,913.02 = 74,248.62/x
  3. Step 3: Cross multiply
    207,272.90x = 310,913.02 × 74,248.62
  4. Step 4: Simplify right side
    207,272.90x = 23,084,862,675.03
  5. Step 5: Solve for x
    x = 23,084,862,675.03/207,272.90
  6. Step 6: Final answer
    x = 111,374.24

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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.