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Finding the Fourth Proportional to 101,605.07, 140,213.49 and 56,282.91

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Solution

The fourth proportional to 101,605.07, 140,213.49 and 56,282.91 is: 77,669.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,605.07 : 140,213.49 = 56,282.91 : x
  2. Step 2: Convert to fraction form
    101,605.07/140,213.49 = 56,282.91/x
  3. Step 3: Cross multiply
    101,605.07x = 140,213.49 × 56,282.91
  4. Step 4: Simplify right side
    101,605.07x = 7,891,623,238.46
  5. Step 5: Solve for x
    x = 7,891,623,238.46/101,605.07
  6. Step 6: Final answer
    x = 77,669.59

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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.