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Finding the Fourth Proportional to 207,065.90, 310,605.81 and 57,293.66

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Solution

The fourth proportional to 207,065.90, 310,605.81 and 57,293.66 is: 85,942.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,065.90 : 310,605.81 = 57,293.66 : x
  2. Step 2: Convert to fraction form
    207,065.90/310,605.81 = 57,293.66/x
  3. Step 3: Cross multiply
    207,065.90x = 310,605.81 × 57,293.66
  4. Step 4: Simplify right side
    207,065.90x = 17,795,744,233.83
  5. Step 5: Solve for x
    x = 17,795,744,233.83/207,065.90
  6. Step 6: Final answer
    x = 85,942.42

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1.5x scale

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.