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Finding the Fourth Proportional to 70,595.26, 105,752.27 and 51,659.79

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Solution

The fourth proportional to 70,595.26, 105,752.27 and 51,659.79 is: 77,386.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,595.26 : 105,752.27 = 51,659.79 : x
  2. Step 2: Convert to fraction form
    70,595.26/105,752.27 = 51,659.79/x
  3. Step 3: Cross multiply
    70,595.26x = 105,752.27 × 51,659.79
  4. Step 4: Simplify right side
    70,595.26x = 5,463,139,792.80
  5. Step 5: Solve for x
    x = 5,463,139,792.80/70,595.26
  6. Step 6: Final answer
    x = 77,386.78

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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.