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Finding the Fourth Proportional to 612,558.65, 918,881.72 and 163,277.17

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Solution

The fourth proportional to 612,558.65, 918,881.72 and 163,277.17 is: 244,927.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,558.65 : 918,881.72 = 163,277.17 : x
  2. Step 2: Convert to fraction form
    612,558.65/918,881.72 = 163,277.17/x
  3. Step 3: Cross multiply
    612,558.65x = 918,881.72 × 163,277.17
  4. Step 4: Simplify right side
    612,558.65x = 150,032,404,305.03
  5. Step 5: Solve for x
    x = 150,032,404,305.03/612,558.65
  6. Step 6: Final answer
    x = 244,927.41

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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.