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Finding the Fourth Proportional to 354,312.40, 531,377.76 and 104,936.08

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Solution

The fourth proportional to 354,312.40, 531,377.76 and 104,936.08 is: 157,377.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,312.40 : 531,377.76 = 104,936.08 : x
  2. Step 2: Convert to fraction form
    354,312.40/531,377.76 = 104,936.08/x
  3. Step 3: Cross multiply
    354,312.40x = 531,377.76 × 104,936.08
  4. Step 4: Simplify right side
    354,312.40x = 55,760,699,133.58
  5. Step 5: Solve for x
    x = 55,760,699,133.58/354,312.40
  6. Step 6: Final answer
    x = 157,377.22

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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.