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Finding the Fourth Proportional to 58,895.80, 88,343.70 and 55,007.80

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Solution

The fourth proportional to 58,895.80, 88,343.70 and 55,007.80 is: 82,511.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,895.80 : 88,343.70 = 55,007.80 : x
  2. Step 2: Convert to fraction form
    58,895.80/88,343.70 = 55,007.80/x
  3. Step 3: Cross multiply
    58,895.80x = 88,343.70 × 55,007.80
  4. Step 4: Simplify right side
    58,895.80x = 4,859,592,580.86
  5. Step 5: Solve for x
    x = 4,859,592,580.86/58,895.80
  6. Step 6: Final answer
    x = 82,511.70

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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.