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Finding the Fourth Proportional to 60,212.52, 90,285.60 and 20,737.08

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Solution

The fourth proportional to 60,212.52, 90,285.60 and 20,737.08 is: 31,094.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,212.52 : 90,285.60 = 20,737.08 : x
  2. Step 2: Convert to fraction form
    60,212.52/90,285.60 = 20,737.08/x
  3. Step 3: Cross multiply
    60,212.52x = 90,285.60 × 20,737.08
  4. Step 4: Simplify right side
    60,212.52x = 1,872,259,710.05
  5. Step 5: Solve for x
    x = 1,872,259,710.05/60,212.52
  6. Step 6: Final answer
    x = 31,094.19

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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.