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Finding the Fourth Proportional to 116,350.65, 160,567.70 and 65,372.45

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Solution

The fourth proportional to 116,350.65, 160,567.70 and 65,372.45 is: 90,216.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,350.65 : 160,567.70 = 65,372.45 : x
  2. Step 2: Convert to fraction form
    116,350.65/160,567.70 = 65,372.45/x
  3. Step 3: Cross multiply
    116,350.65x = 160,567.70 × 65,372.45
  4. Step 4: Simplify right side
    116,350.65x = 10,496,703,939.87
  5. Step 5: Solve for x
    x = 10,496,703,939.87/116,350.65
  6. Step 6: Final answer
    x = 90,216.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.