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Finding the Fourth Proportional to 61,073.69, 91,475.18 and 46,929.60

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Solution

The fourth proportional to 61,073.69, 91,475.18 and 46,929.60 is: 70,290.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,073.69 : 91,475.18 = 46,929.60 : x
  2. Step 2: Convert to fraction form
    61,073.69/91,475.18 = 46,929.60/x
  3. Step 3: Cross multiply
    61,073.69x = 91,475.18 × 46,929.60
  4. Step 4: Simplify right side
    61,073.69x = 4,292,893,372.68
  5. Step 5: Solve for x
    x = 4,292,893,372.68/61,073.69
  6. Step 6: Final answer
    x = 70,290.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.