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Finding the Fourth Proportional to 64,176.70, 96,281.27 and 51,809.10

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Solution

The fourth proportional to 64,176.70, 96,281.27 and 51,809.10 is: 77,726.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,176.70 : 96,281.27 = 51,809.10 : x
  2. Step 2: Convert to fraction form
    64,176.70/96,281.27 = 51,809.10/x
  3. Step 3: Cross multiply
    64,176.70x = 96,281.27 × 51,809.10
  4. Step 4: Simplify right side
    64,176.70x = 4,988,245,945.56
  5. Step 5: Solve for x
    x = 4,988,245,945.56/64,176.70
  6. Step 6: Final answer
    x = 77,726.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.