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Finding the Fourth Proportional to 101,860.93, 140,584.91 and 56,553.45

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Solution

The fourth proportional to 101,860.93, 140,584.91 and 56,553.45 is: 78,053.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,860.93 : 140,584.91 = 56,553.45 : x
  2. Step 2: Convert to fraction form
    101,860.93/140,584.91 = 56,553.45/x
  3. Step 3: Cross multiply
    101,860.93x = 140,584.91 × 56,553.45
  4. Step 4: Simplify right side
    101,860.93x = 7,950,561,678.44
  5. Step 5: Solve for x
    x = 7,950,561,678.44/101,860.93
  6. Step 6: Final answer
    x = 78,053.10

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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.