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Finding the Fourth Proportional to 77,053.62, 106,334.40 and 43,062.68

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Solution

The fourth proportional to 77,053.62, 106,334.40 and 43,062.68 is: 59,426.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,053.62 : 106,334.40 = 43,062.68 : x
  2. Step 2: Convert to fraction form
    77,053.62/106,334.40 = 43,062.68/x
  3. Step 3: Cross multiply
    77,053.62x = 106,334.40 × 43,062.68
  4. Step 4: Simplify right side
    77,053.62x = 4,579,044,240.19
  5. Step 5: Solve for x
    x = 4,579,044,240.19/77,053.62
  6. Step 6: Final answer
    x = 59,426.72

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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.