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Finding the Fourth Proportional to 243,864.31, 336,647.81 and 183,458

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Solution

The fourth proportional to 243,864.31, 336,647.81 and 183,458 is: 253,258.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,864.31 : 336,647.81 = 183,458 : x
  2. Step 2: Convert to fraction form
    243,864.31/336,647.81 = 183,458/x
  3. Step 3: Cross multiply
    243,864.31x = 336,647.81 × 183,458
  4. Step 4: Simplify right side
    243,864.31x = 61,760,733,926.98
  5. Step 5: Solve for x
    x = 61,760,733,926.98/243,864.31
  6. Step 6: Final answer
    x = 253,258.60

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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.