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Finding the Fourth Proportional to 64,364.16, 88,679.28 and 48,158.48

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Solution

The fourth proportional to 64,364.16, 88,679.28 and 48,158.48 is: 66,351.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,364.16 : 88,679.28 = 48,158.48 : x
  2. Step 2: Convert to fraction form
    64,364.16/88,679.28 = 48,158.48/x
  3. Step 3: Cross multiply
    64,364.16x = 88,679.28 × 48,158.48
  4. Step 4: Simplify right side
    64,364.16x = 4,270,659,332.29
  5. Step 5: Solve for x
    x = 4,270,659,332.29/64,364.16
  6. Step 6: Final answer
    x = 66,351.51

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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.