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Finding the Fourth Proportional to 64,395.41, 88,981.13 and 50,354.87

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Solution

The fourth proportional to 64,395.41, 88,981.13 and 50,354.87 is: 69,580.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,395.41 : 88,981.13 = 50,354.87 : x
  2. Step 2: Convert to fraction form
    64,395.41/88,981.13 = 50,354.87/x
  3. Step 3: Cross multiply
    64,395.41x = 88,981.13 × 50,354.87
  4. Step 4: Simplify right side
    64,395.41x = 4,480,632,914.58
  5. Step 5: Solve for x
    x = 4,480,632,914.58/64,395.41
  6. Step 6: Final answer
    x = 69,580.01

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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.