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Finding the Fourth Proportional to 473,220.34, 709,836.65 and 136,266.51

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Solution

The fourth proportional to 473,220.34, 709,836.65 and 136,266.51 is: 204,401.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,220.34 : 709,836.65 = 136,266.51 : x
  2. Step 2: Convert to fraction form
    473,220.34/709,836.65 = 136,266.51/x
  3. Step 3: Cross multiply
    473,220.34x = 709,836.65 × 136,266.51
  4. Step 4: Simplify right side
    473,220.34x = 96,726,962,965.59
  5. Step 5: Solve for x
    x = 96,726,962,965.59/473,220.34
  6. Step 6: Final answer
    x = 204,401.53

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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.