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Finding the Fourth Proportional to 64,364.88, 88,823.52 and 39,214.32

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Solution

The fourth proportional to 64,364.88, 88,823.52 and 39,214.32 is: 54,115.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,364.88 : 88,823.52 = 39,214.32 : x
  2. Step 2: Convert to fraction form
    64,364.88/88,823.52 = 39,214.32/x
  3. Step 3: Cross multiply
    64,364.88x = 88,823.52 × 39,214.32
  4. Step 4: Simplify right side
    64,364.88x = 3,483,153,936.81
  5. Step 5: Solve for x
    x = 3,483,153,936.81/64,364.88
  6. Step 6: Final answer
    x = 54,115.75

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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.