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Finding the Fourth Proportional to 63,774.32, 88,129.94 and 47,831.09

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Solution

The fourth proportional to 63,774.32, 88,129.94 and 47,831.09 is: 66,097.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,774.32 : 88,129.94 = 47,831.09 : x
  2. Step 2: Convert to fraction form
    63,774.32/88,129.94 = 47,831.09/x
  3. Step 3: Cross multiply
    63,774.32x = 88,129.94 × 47,831.09
  4. Step 4: Simplify right side
    63,774.32x = 4,215,351,091.83
  5. Step 5: Solve for x
    x = 4,215,351,091.83/63,774.32
  6. Step 6: Final answer
    x = 66,097.94

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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.