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Finding the Fourth Proportional to 77,054.30, 106,332.82 and 43,062.93

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Solution

The fourth proportional to 77,054.30, 106,332.82 and 43,062.93 is: 59,425.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,054.30 : 106,332.82 = 43,062.93 : x
  2. Step 2: Convert to fraction form
    77,054.30/106,332.82 = 43,062.93/x
  3. Step 3: Cross multiply
    77,054.30x = 106,332.82 × 43,062.93
  4. Step 4: Simplify right side
    77,054.30x = 4,579,002,676.71
  5. Step 5: Solve for x
    x = 4,579,002,676.71/77,054.30
  6. Step 6: Final answer
    x = 59,425.66

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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.