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Finding the Fourth Proportional to 101,557.98, 140,138.66 and 56,224.62

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Solution

The fourth proportional to 101,557.98, 140,138.66 and 56,224.62 is: 77,583.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,557.98 : 140,138.66 = 56,224.62 : x
  2. Step 2: Convert to fraction form
    101,557.98/140,138.66 = 56,224.62/x
  3. Step 3: Cross multiply
    101,557.98x = 140,138.66 × 56,224.62
  4. Step 4: Simplify right side
    101,557.98x = 7,879,243,046.37
  5. Step 5: Solve for x
    x = 7,879,243,046.37/101,557.98
  6. Step 6: Final answer
    x = 77,583.69

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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.