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Finding the Fourth Proportional to 159,125.16, 219,592.42 and 91,164.16

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Solution

The fourth proportional to 159,125.16, 219,592.42 and 91,164.16 is: 125,806.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,125.16 : 219,592.42 = 91,164.16 : x
  2. Step 2: Convert to fraction form
    159,125.16/219,592.42 = 91,164.16/x
  3. Step 3: Cross multiply
    159,125.16x = 219,592.42 × 91,164.16
  4. Step 4: Simplify right side
    159,125.16x = 20,018,958,511.67
  5. Step 5: Solve for x
    x = 20,018,958,511.67/159,125.16
  6. Step 6: Final answer
    x = 125,806.37

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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.