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Finding the Fourth Proportional to 266,165.88, 398,916.54 and 133,084.19

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Solution

The fourth proportional to 266,165.88, 398,916.54 and 133,084.19 is: 199,460.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,165.88 : 398,916.54 = 133,084.19 : x
  2. Step 2: Convert to fraction form
    266,165.88/398,916.54 = 133,084.19/x
  3. Step 3: Cross multiply
    266,165.88x = 398,916.54 × 133,084.19
  4. Step 4: Simplify right side
    266,165.88x = 53,089,482,608.92
  5. Step 5: Solve for x
    x = 53,089,482,608.92/266,165.88
  6. Step 6: Final answer
    x = 199,460.14

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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.