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Finding the Fourth Proportional to 445,284.99, 667,956.06 and 157,061.16

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Solution

The fourth proportional to 445,284.99, 667,956.06 and 157,061.16 is: 235,601.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,284.99 : 667,956.06 = 157,061.16 : x
  2. Step 2: Convert to fraction form
    445,284.99/667,956.06 = 157,061.16/x
  3. Step 3: Cross multiply
    445,284.99x = 667,956.06 × 157,061.16
  4. Step 4: Simplify right side
    445,284.99x = 104,909,953,612.63
  5. Step 5: Solve for x
    x = 104,909,953,612.63/445,284.99
  6. Step 6: Final answer
    x = 235,601.82

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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.