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Finding the Fourth Proportional to 64,470.74, 96,264.88 and 57,763.94

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Solution

The fourth proportional to 64,470.74, 96,264.88 and 57,763.94 is: 86,250.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,470.74 : 96,264.88 = 57,763.94 : x
  2. Step 2: Convert to fraction form
    64,470.74/96,264.88 = 57,763.94/x
  3. Step 3: Cross multiply
    64,470.74x = 96,264.88 × 57,763.94
  4. Step 4: Simplify right side
    64,470.74x = 5,560,638,752.43
  5. Step 5: Solve for x
    x = 5,560,638,752.43/64,470.74
  6. Step 6: Final answer
    x = 86,250.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.