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Finding the Fourth Proportional to 386,165.16, 579,286.67 and 101,875.37

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Solution

The fourth proportional to 386,165.16, 579,286.67 and 101,875.37 is: 152,823.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,165.16 : 579,286.67 = 101,875.37 : x
  2. Step 2: Convert to fraction form
    386,165.16/579,286.67 = 101,875.37/x
  3. Step 3: Cross multiply
    386,165.16x = 579,286.67 × 101,875.37
  4. Step 4: Simplify right side
    386,165.16x = 59,015,040,436.51
  5. Step 5: Solve for x
    x = 59,015,040,436.51/386,165.16
  6. Step 6: Final answer
    x = 152,823.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.