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Finding the Fourth Proportional to 62,212.80, 93,319.20 and 56,089.20

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Solution

The fourth proportional to 62,212.80, 93,319.20 and 56,089.20 is: 84,133.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,212.80 : 93,319.20 = 56,089.20 : x
  2. Step 2: Convert to fraction form
    62,212.80/93,319.20 = 56,089.20/x
  3. Step 3: Cross multiply
    62,212.80x = 93,319.20 × 56,089.20
  4. Step 4: Simplify right side
    62,212.80x = 5,234,199,272.64
  5. Step 5: Solve for x
    x = 5,234,199,272.64/62,212.80
  6. Step 6: Final answer
    x = 84,133.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.