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Finding the Fourth Proportional to 77,588.57, 107,059.28 and 45,763.77

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Solution

The fourth proportional to 77,588.57, 107,059.28 and 45,763.77 is: 63,146.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,588.57 : 107,059.28 = 45,763.77 : x
  2. Step 2: Convert to fraction form
    77,588.57/107,059.28 = 45,763.77/x
  3. Step 3: Cross multiply
    77,588.57x = 107,059.28 × 45,763.77
  4. Step 4: Simplify right side
    77,588.57x = 4,899,436,266.29
  5. Step 5: Solve for x
    x = 4,899,436,266.29/77,588.57
  6. Step 6: Final answer
    x = 63,146.37

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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.