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Finding the Fourth Proportional to 64,655.47, 89,223.69 and 36,361.16

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Solution

The fourth proportional to 64,655.47, 89,223.69 and 36,361.16 is: 50,177.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,655.47 : 89,223.69 = 36,361.16 : x
  2. Step 2: Convert to fraction form
    64,655.47/89,223.69 = 36,361.16/x
  3. Step 3: Cross multiply
    64,655.47x = 89,223.69 × 36,361.16
  4. Step 4: Simplify right side
    64,655.47x = 3,244,276,892.71
  5. Step 5: Solve for x
    x = 3,244,276,892.71/64,655.47
  6. Step 6: Final answer
    x = 50,177.92

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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.