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Finding the Fourth Proportional to 103,463.75, 142,779.83 and 60,472.80

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Solution

The fourth proportional to 103,463.75, 142,779.83 and 60,472.80 is: 83,452.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,463.75 : 142,779.83 = 60,472.80 : x
  2. Step 2: Convert to fraction form
    103,463.75/142,779.83 = 60,472.80/x
  3. Step 3: Cross multiply
    103,463.75x = 142,779.83 × 60,472.80
  4. Step 4: Simplify right side
    103,463.75x = 8,634,295,801.26
  5. Step 5: Solve for x
    x = 8,634,295,801.26/103,463.75
  6. Step 6: Final answer
    x = 83,452.38

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1.5x scale

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.