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Finding the Fourth Proportional to 60,790.48, 83,703.72 and 51,817.84

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Solution

The fourth proportional to 60,790.48, 83,703.72 and 51,817.84 is: 71,349.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,790.48 : 83,703.72 = 51,817.84 : x
  2. Step 2: Convert to fraction form
    60,790.48/83,703.72 = 51,817.84/x
  3. Step 3: Cross multiply
    60,790.48x = 83,703.72 × 51,817.84
  4. Step 4: Simplify right side
    60,790.48x = 4,337,345,970.36
  5. Step 5: Solve for x
    x = 4,337,345,970.36/60,790.48
  6. Step 6: Final answer
    x = 71,349.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.