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Finding the Fourth Proportional to 78,622.74, 108,463.10 and 46,335.33

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Solution

The fourth proportional to 78,622.74, 108,463.10 and 46,335.33 is: 63,921.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,622.74 : 108,463.10 = 46,335.33 : x
  2. Step 2: Convert to fraction form
    78,622.74/108,463.10 = 46,335.33/x
  3. Step 3: Cross multiply
    78,622.74x = 108,463.10 × 46,335.33
  4. Step 4: Simplify right side
    78,622.74x = 5,025,673,299.65
  5. Step 5: Solve for x
    x = 5,025,673,299.65/78,622.74
  6. Step 6: Final answer
    x = 63,921.37

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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.