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Finding the Fourth Proportional to 86,692.78, 119,635.98 and 46,948.78

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Solution

The fourth proportional to 86,692.78, 119,635.98 and 46,948.78 is: 64,789.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,692.78 : 119,635.98 = 46,948.78 : x
  2. Step 2: Convert to fraction form
    86,692.78/119,635.98 = 46,948.78/x
  3. Step 3: Cross multiply
    86,692.78x = 119,635.98 × 46,948.78
  4. Step 4: Simplify right side
    86,692.78x = 5,616,763,305.10
  5. Step 5: Solve for x
    x = 5,616,763,305.10/86,692.78
  6. Step 6: Final answer
    x = 64,789.29

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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.