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Finding the Fourth Proportional to 86,648.53, 119,574.95 and 48,408.09

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Solution

The fourth proportional to 86,648.53, 119,574.95 and 48,408.09 is: 66,803.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,648.53 : 119,574.95 = 48,408.09 : x
  2. Step 2: Convert to fraction form
    86,648.53/119,574.95 = 48,408.09/x
  3. Step 3: Cross multiply
    86,648.53x = 119,574.95 × 48,408.09
  4. Step 4: Simplify right side
    86,648.53x = 5,788,394,859.50
  5. Step 5: Solve for x
    x = 5,788,394,859.50/86,648.53
  6. Step 6: Final answer
    x = 66,803.15

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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.