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Finding the Fourth Proportional to 190,624.32, 285,938.52 and 57,505.73

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Solution

The fourth proportional to 190,624.32, 285,938.52 and 57,505.73 is: 86,259.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,624.32 : 285,938.52 = 57,505.73 : x
  2. Step 2: Convert to fraction form
    190,624.32/285,938.52 = 57,505.73/x
  3. Step 3: Cross multiply
    190,624.32x = 285,938.52 × 57,505.73
  4. Step 4: Simplify right side
    190,624.32x = 16,443,101,898.03
  5. Step 5: Solve for x
    x = 16,443,101,898.03/190,624.32
  6. Step 6: Final answer
    x = 86,259.21

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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.