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Finding the Fourth Proportional to 222,896.34, 307,618.56 and 127,384.79

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Solution

The fourth proportional to 222,896.34, 307,618.56 and 127,384.79 is: 175,803.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,896.34 : 307,618.56 = 127,384.79 : x
  2. Step 2: Convert to fraction form
    222,896.34/307,618.56 = 127,384.79/x
  3. Step 3: Cross multiply
    222,896.34x = 307,618.56 × 127,384.79
  4. Step 4: Simplify right side
    222,896.34x = 39,185,924,127.61
  5. Step 5: Solve for x
    x = 39,185,924,127.61/222,896.34
  6. Step 6: Final answer
    x = 175,803.35

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1.5x scale

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.