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Finding the Fourth Proportional to 215,673, 297,624.74 and 117,557.07

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Solution

The fourth proportional to 215,673, 297,624.74 and 117,557.07 is: 162,226.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,673 : 297,624.74 = 117,557.07 : x
  2. Step 2: Convert to fraction form
    215,673/297,624.74 = 117,557.07/x
  3. Step 3: Cross multiply
    215,673x = 297,624.74 × 117,557.07
  4. Step 4: Simplify right side
    215,673x = 34,987,891,806.13
  5. Step 5: Solve for x
    x = 34,987,891,806.13/215,673
  6. Step 6: Final answer
    x = 162,226.57

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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.