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Finding the Fourth Proportional to 61,936.28, 93,320.81 and 56,019.77

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Solution

The fourth proportional to 61,936.28, 93,320.81 and 56,019.77 is: 84,406.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,936.28 : 93,320.81 = 56,019.77 : x
  2. Step 2: Convert to fraction form
    61,936.28/93,320.81 = 56,019.77/x
  3. Step 3: Cross multiply
    61,936.28x = 93,320.81 × 56,019.77
  4. Step 4: Simplify right side
    61,936.28x = 5,227,810,125.74
  5. Step 5: Solve for x
    x = 5,227,810,125.74/61,936.28
  6. Step 6: Final answer
    x = 84,406.27

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.