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Finding the Fourth Proportional to 289,570.96, 434,356.56 and 79,192.96

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Solution

The fourth proportional to 289,570.96, 434,356.56 and 79,192.96 is: 118,789.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,570.96 : 434,356.56 = 79,192.96 : x
  2. Step 2: Convert to fraction form
    289,570.96/434,356.56 = 79,192.96/x
  3. Step 3: Cross multiply
    289,570.96x = 434,356.56 × 79,192.96
  4. Step 4: Simplify right side
    289,570.96x = 34,397,981,681.82
  5. Step 5: Solve for x
    x = 34,397,981,681.82/289,570.96
  6. Step 6: Final answer
    x = 118,789.47

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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.