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Finding the Fourth Proportional to 78,260.99, 107,964.29 and 46,418.27

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Solution

The fourth proportional to 78,260.99, 107,964.29 and 46,418.27 is: 64,035.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,260.99 : 107,964.29 = 46,418.27 : x
  2. Step 2: Convert to fraction form
    78,260.99/107,964.29 = 46,418.27/x
  3. Step 3: Cross multiply
    78,260.99x = 107,964.29 × 46,418.27
  4. Step 4: Simplify right side
    78,260.99x = 5,011,515,139.80
  5. Step 5: Solve for x
    x = 5,011,515,139.80/78,260.99
  6. Step 6: Final answer
    x = 64,035.93

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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.