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Finding the Fourth Proportional to 58,562.60, 87,850.30 and 56,719.40

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Solution

The fourth proportional to 58,562.60, 87,850.30 and 56,719.40 is: 85,085.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,562.60 : 87,850.30 = 56,719.40 : x
  2. Step 2: Convert to fraction form
    58,562.60/87,850.30 = 56,719.40/x
  3. Step 3: Cross multiply
    58,562.60x = 87,850.30 × 56,719.40
  4. Step 4: Simplify right side
    58,562.60x = 4,982,816,305.82
  5. Step 5: Solve for x
    x = 4,982,816,305.82/58,562.60
  6. Step 6: Final answer
    x = 85,085.30

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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.