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Finding the Fourth Proportional to 58,969.20, 88,210.80 and 53,778.72

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Solution

The fourth proportional to 58,969.20, 88,210.80 and 53,778.72 is: 80,446.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,969.20 : 88,210.80 = 53,778.72 : x
  2. Step 2: Convert to fraction form
    58,969.20/88,210.80 = 53,778.72/x
  3. Step 3: Cross multiply
    58,969.20x = 88,210.80 × 53,778.72
  4. Step 4: Simplify right side
    58,969.20x = 4,743,863,914.18
  5. Step 5: Solve for x
    x = 4,743,863,914.18/58,969.20
  6. Step 6: Final answer
    x = 80,446.47

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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.