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Finding the Fourth Proportional to 222,145.59, 333,237.34 and 78,038.82

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Solution

The fourth proportional to 222,145.59, 333,237.34 and 78,038.82 is: 117,064.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,145.59 : 333,237.34 = 78,038.82 : x
  2. Step 2: Convert to fraction form
    222,145.59/333,237.34 = 78,038.82/x
  3. Step 3: Cross multiply
    222,145.59x = 333,237.34 × 78,038.82
  4. Step 4: Simplify right side
    222,145.59x = 26,005,448,793.54
  5. Step 5: Solve for x
    x = 26,005,448,793.54/222,145.59
  6. Step 6: Final answer
    x = 117,064.89

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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.