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Finding the Fourth Proportional to 86,262.34, 119,040.69 and 48,536.68

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Solution

The fourth proportional to 86,262.34, 119,040.69 and 48,536.68 is: 66,979.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,262.34 : 119,040.69 = 48,536.68 : x
  2. Step 2: Convert to fraction form
    86,262.34/119,040.69 = 48,536.68/x
  3. Step 3: Cross multiply
    86,262.34x = 119,040.69 × 48,536.68
  4. Step 4: Simplify right side
    86,262.34x = 5,777,839,877.51
  5. Step 5: Solve for x
    x = 5,777,839,877.51/86,262.34
  6. Step 6: Final answer
    x = 66,979.86

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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.