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Finding the Fourth Proportional to 103,974.48, 143,484.84 and 56,228.22

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Solution

The fourth proportional to 103,974.48, 143,484.84 and 56,228.22 is: 77,594.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,974.48 : 143,484.84 = 56,228.22 : x
  2. Step 2: Convert to fraction form
    103,974.48/143,484.84 = 56,228.22/x
  3. Step 3: Cross multiply
    103,974.48x = 143,484.84 × 56,228.22
  4. Step 4: Simplify right side
    103,974.48x = 8,067,897,150.18
  5. Step 5: Solve for x
    x = 8,067,897,150.18/103,974.48
  6. Step 6: Final answer
    x = 77,594.97

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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.