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Finding the Fourth Proportional to 64,208.88, 88,612.20 and 35,916.48

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Solution

The fourth proportional to 64,208.88, 88,612.20 and 35,916.48 is: 49,566.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,208.88 : 88,612.20 = 35,916.48 : x
  2. Step 2: Convert to fraction form
    64,208.88/88,612.20 = 35,916.48/x
  3. Step 3: Cross multiply
    64,208.88x = 88,612.20 × 35,916.48
  4. Step 4: Simplify right side
    64,208.88x = 3,182,638,309.06
  5. Step 5: Solve for x
    x = 3,182,638,309.06/64,208.88
  6. Step 6: Final answer
    x = 49,566.95

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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.