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Finding the Fourth Proportional to 546,153.51, 818,701.21 and 208,934.49

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Solution

The fourth proportional to 546,153.51, 818,701.21 and 208,934.49 is: 313,199.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,153.51 : 818,701.21 = 208,934.49 : x
  2. Step 2: Convert to fraction form
    546,153.51/818,701.21 = 208,934.49/x
  3. Step 3: Cross multiply
    546,153.51x = 818,701.21 × 208,934.49
  4. Step 4: Simplify right side
    546,153.51x = 171,054,919,773.73
  5. Step 5: Solve for x
    x = 171,054,919,773.73/546,153.51
  6. Step 6: Final answer
    x = 313,199.34

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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.