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Finding the Fourth Proportional to 78,299.69, 108,065.16 and 46,032.93

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Solution

The fourth proportional to 78,299.69, 108,065.16 and 46,032.93 is: 63,532.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,299.69 : 108,065.16 = 46,032.93 : x
  2. Step 2: Convert to fraction form
    78,299.69/108,065.16 = 46,032.93/x
  3. Step 3: Cross multiply
    78,299.69x = 108,065.16 × 46,032.93
  4. Step 4: Simplify right side
    78,299.69x = 4,974,555,945.72
  5. Step 5: Solve for x
    x = 4,974,555,945.72/78,299.69
  6. Step 6: Final answer
    x = 63,532.26

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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.