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Finding the Fourth Proportional to 107,668.61, 148,580.42 and 62,354.78

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Solution

The fourth proportional to 107,668.61, 148,580.42 and 62,354.78 is: 86,048.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,668.61 : 148,580.42 = 62,354.78 : x
  2. Step 2: Convert to fraction form
    107,668.61/148,580.42 = 62,354.78/x
  3. Step 3: Cross multiply
    107,668.61x = 148,580.42 × 62,354.78
  4. Step 4: Simplify right side
    107,668.61x = 9,264,698,346.73
  5. Step 5: Solve for x
    x = 9,264,698,346.73/107,668.61
  6. Step 6: Final answer
    x = 86,048.28

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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.