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Finding the Fourth Proportional to 62,108.02, 93,129 and 45,508.60

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Solution

The fourth proportional to 62,108.02, 93,129 and 45,508.60 is: 68,238.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,108.02 : 93,129 = 45,508.60 : x
  2. Step 2: Convert to fraction form
    62,108.02/93,129 = 45,508.60/x
  3. Step 3: Cross multiply
    62,108.02x = 93,129 × 45,508.60
  4. Step 4: Simplify right side
    62,108.02x = 4,238,170,409.40
  5. Step 5: Solve for x
    x = 4,238,170,409.40/62,108.02
  6. Step 6: Final answer
    x = 68,238.70

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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.