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Finding the Fourth Proportional to 213,391.71, 320,087.57 and 63,737.13

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Solution

The fourth proportional to 213,391.71, 320,087.57 and 63,737.13 is: 95,605.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,391.71 : 320,087.57 = 63,737.13 : x
  2. Step 2: Convert to fraction form
    213,391.71/320,087.57 = 63,737.13/x
  3. Step 3: Cross multiply
    213,391.71x = 320,087.57 × 63,737.13
  4. Step 4: Simplify right side
    213,391.71x = 20,401,462,741.79
  5. Step 5: Solve for x
    x = 20,401,462,741.79/213,391.71
  6. Step 6: Final answer
    x = 95,605.70

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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.