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Finding the Fourth Proportional to 56,565.72, 77,881.80 and 43,093.80

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Solution

The fourth proportional to 56,565.72, 77,881.80 and 43,093.80 is: 59,333.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,565.72 : 77,881.80 = 43,093.80 : x
  2. Step 2: Convert to fraction form
    56,565.72/77,881.80 = 43,093.80/x
  3. Step 3: Cross multiply
    56,565.72x = 77,881.80 × 43,093.80
  4. Step 4: Simplify right side
    56,565.72x = 3,356,222,712.84
  5. Step 5: Solve for x
    x = 3,356,222,712.84/56,565.72
  6. Step 6: Final answer
    x = 59,333.16

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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.