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Finding the Fourth Proportional to 207,265.80, 310,898.70 and 74,150.40

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Solution

The fourth proportional to 207,265.80, 310,898.70 and 74,150.40 is: 111,225.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,265.80 : 310,898.70 = 74,150.40 : x
  2. Step 2: Convert to fraction form
    207,265.80/310,898.70 = 74,150.40/x
  3. Step 3: Cross multiply
    207,265.80x = 310,898.70 × 74,150.40
  4. Step 4: Simplify right side
    207,265.80x = 23,053,262,964.48
  5. Step 5: Solve for x
    x = 23,053,262,964.48/207,265.80
  6. Step 6: Final answer
    x = 111,225.60

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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.