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Finding the Fourth Proportional to 199,484.40, 275,390.16 and 154,060.56

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Solution

The fourth proportional to 199,484.40, 275,390.16 and 154,060.56 is: 212,682.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,484.40 : 275,390.16 = 154,060.56 : x
  2. Step 2: Convert to fraction form
    199,484.40/275,390.16 = 154,060.56/x
  3. Step 3: Cross multiply
    199,484.40x = 275,390.16 × 154,060.56
  4. Step 4: Simplify right side
    199,484.40x = 42,426,762,268.09
  5. Step 5: Solve for x
    x = 42,426,762,268.09/199,484.40
  6. Step 6: Final answer
    x = 212,682.11

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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.