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Finding the Fourth Proportional to 190,833.76, 285,932.08 and 84,058.64

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Solution

The fourth proportional to 190,833.76, 285,932.08 and 84,058.64 is: 125,947.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,833.76 : 285,932.08 = 84,058.64 : x
  2. Step 2: Convert to fraction form
    190,833.76/285,932.08 = 84,058.64/x
  3. Step 3: Cross multiply
    190,833.76x = 285,932.08 × 84,058.64
  4. Step 4: Simplify right side
    190,833.76x = 24,035,061,777.17
  5. Step 5: Solve for x
    x = 24,035,061,777.17/190,833.76
  6. Step 6: Final answer
    x = 125,947.64

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1.5x scale

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.