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Finding the Fourth Proportional to 63,349.80, 86,956.98 and 56,019.03

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Solution

The fourth proportional to 63,349.80, 86,956.98 and 56,019.03 is: 76,894.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,349.80 : 86,956.98 = 56,019.03 : x
  2. Step 2: Convert to fraction form
    63,349.80/86,956.98 = 56,019.03/x
  3. Step 3: Cross multiply
    63,349.80x = 86,956.98 × 56,019.03
  4. Step 4: Simplify right side
    63,349.80x = 4,871,245,135.17
  5. Step 5: Solve for x
    x = 4,871,245,135.17/63,349.80
  6. Step 6: Final answer
    x = 76,894.41

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.