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Finding the Fourth Proportional to 64,221.68, 88,612.65 and 44,071.21

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Solution

The fourth proportional to 64,221.68, 88,612.65 and 44,071.21 is: 60,809.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,221.68 : 88,612.65 = 44,071.21 : x
  2. Step 2: Convert to fraction form
    64,221.68/88,612.65 = 44,071.21/x
  3. Step 3: Cross multiply
    64,221.68x = 88,612.65 × 44,071.21
  4. Step 4: Simplify right side
    64,221.68x = 3,905,266,486.45
  5. Step 5: Solve for x
    x = 3,905,266,486.45/64,221.68
  6. Step 6: Final answer
    x = 60,809.16

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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.