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Finding the Fourth Proportional to 231,570.34, 347,355.50 and 65,358.34

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Solution

The fourth proportional to 231,570.34, 347,355.50 and 65,358.34 is: 98,037.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,570.34 : 347,355.50 = 65,358.34 : x
  2. Step 2: Convert to fraction form
    231,570.34/347,355.50 = 65,358.34/x
  3. Step 3: Cross multiply
    231,570.34x = 347,355.50 × 65,358.34
  4. Step 4: Simplify right side
    231,570.34x = 22,702,578,869.87
  5. Step 5: Solve for x
    x = 22,702,578,869.87/231,570.34
  6. Step 6: Final answer
    x = 98,037.51

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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.