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Finding the Fourth Proportional to 65,332.42, 90,186.32 and 44,140.39

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Solution

The fourth proportional to 65,332.42, 90,186.32 and 44,140.39 is: 60,932.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,332.42 : 90,186.32 = 44,140.39 : x
  2. Step 2: Convert to fraction form
    65,332.42/90,186.32 = 44,140.39/x
  3. Step 3: Cross multiply
    65,332.42x = 90,186.32 × 44,140.39
  4. Step 4: Simplify right side
    65,332.42x = 3,980,859,222.35
  5. Step 5: Solve for x
    x = 3,980,859,222.35/65,332.42
  6. Step 6: Final answer
    x = 60,932.37

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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.