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Finding the Fourth Proportional to 86,483.58, 119,347.12 and 48,757.56

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Solution

The fourth proportional to 86,483.58, 119,347.12 and 48,757.56 is: 67,285.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,483.58 : 119,347.12 = 48,757.56 : x
  2. Step 2: Convert to fraction form
    86,483.58/119,347.12 = 48,757.56/x
  3. Step 3: Cross multiply
    86,483.58x = 119,347.12 × 48,757.56
  4. Step 4: Simplify right side
    86,483.58x = 5,819,074,364.23
  5. Step 5: Solve for x
    x = 5,819,074,364.23/86,483.58
  6. Step 6: Final answer
    x = 67,285.31

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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.