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Finding the Fourth Proportional to 66,443.24, 91,668.78 and 46,292.78

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Solution

The fourth proportional to 66,443.24, 91,668.78 and 46,292.78 is: 63,868.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,443.24 : 91,668.78 = 46,292.78 : x
  2. Step 2: Convert to fraction form
    66,443.24/91,668.78 = 46,292.78/x
  3. Step 3: Cross multiply
    66,443.24x = 91,668.78 × 46,292.78
  4. Step 4: Simplify right side
    66,443.24x = 4,243,602,207.06
  5. Step 5: Solve for x
    x = 4,243,602,207.06/66,443.24
  6. Step 6: Final answer
    x = 63,868.09

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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.