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Finding the Fourth Proportional to 479,103.34, 718,726.78 and 154,783.06

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Solution

The fourth proportional to 479,103.34, 718,726.78 and 154,783.06 is: 232,197.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,103.34 : 718,726.78 = 154,783.06 : x
  2. Step 2: Convert to fraction form
    479,103.34/718,726.78 = 154,783.06/x
  3. Step 3: Cross multiply
    479,103.34x = 718,726.78 × 154,783.06
  4. Step 4: Simplify right side
    479,103.34x = 111,246,730,312.35
  5. Step 5: Solve for x
    x = 111,246,730,312.35/479,103.34
  6. Step 6: Final answer
    x = 232,197.78

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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.