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Finding the Fourth Proportional to 268,058.84, 369,929.82 and 154,881.56

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Solution

The fourth proportional to 268,058.84, 369,929.82 and 154,881.56 is: 213,741.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,058.84 : 369,929.82 = 154,881.56 : x
  2. Step 2: Convert to fraction form
    268,058.84/369,929.82 = 154,881.56/x
  3. Step 3: Cross multiply
    268,058.84x = 369,929.82 × 154,881.56
  4. Step 4: Simplify right side
    268,058.84x = 57,295,307,612.12
  5. Step 5: Solve for x
    x = 57,295,307,612.12/268,058.84
  6. Step 6: Final answer
    x = 213,741.53

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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.