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Finding the Fourth Proportional to 203,486.71, 280,829.42 and 118,601.95

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Solution

The fourth proportional to 203,486.71, 280,829.42 and 118,601.95 is: 163,681.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,486.71 : 280,829.42 = 118,601.95 : x
  2. Step 2: Convert to fraction form
    203,486.71/280,829.42 = 118,601.95/x
  3. Step 3: Cross multiply
    203,486.71x = 280,829.42 × 118,601.95
  4. Step 4: Simplify right side
    203,486.71x = 33,306,916,829.37
  5. Step 5: Solve for x
    x = 33,306,916,829.37/203,486.71
  6. Step 6: Final answer
    x = 163,681.04

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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.