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Finding the Fourth Proportional to 86,858.77, 119,848.06 and 54,574.68

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Solution

The fourth proportional to 86,858.77, 119,848.06 and 54,574.68 is: 75,302.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,858.77 : 119,848.06 = 54,574.68 : x
  2. Step 2: Convert to fraction form
    86,858.77/119,848.06 = 54,574.68/x
  3. Step 3: Cross multiply
    86,858.77x = 119,848.06 × 54,574.68
  4. Step 4: Simplify right side
    86,858.77x = 6,540,669,523.12
  5. Step 5: Solve for x
    x = 6,540,669,523.12/86,858.77
  6. Step 6: Final answer
    x = 75,302.35

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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.