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Finding the Fourth Proportional to 344,278.69, 475,074.35 and 191,307.19

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Solution

The fourth proportional to 344,278.69, 475,074.35 and 191,307.19 is: 263,987.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,278.69 : 475,074.35 = 191,307.19 : x
  2. Step 2: Convert to fraction form
    344,278.69/475,074.35 = 191,307.19/x
  3. Step 3: Cross multiply
    344,278.69x = 475,074.35 × 191,307.19
  4. Step 4: Simplify right side
    344,278.69x = 90,885,135,607.67
  5. Step 5: Solve for x
    x = 90,885,135,607.67/344,278.69
  6. Step 6: Final answer
    x = 263,987.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.