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Finding the Fourth Proportional to 151,810.88, 209,596.56 and 98,178.08

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Solution

The fourth proportional to 151,810.88, 209,596.56 and 98,178.08 is: 135,548.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,810.88 : 209,596.56 = 98,178.08 : x
  2. Step 2: Convert to fraction form
    151,810.88/209,596.56 = 98,178.08/x
  3. Step 3: Cross multiply
    151,810.88x = 209,596.56 × 98,178.08
  4. Step 4: Simplify right side
    151,810.88x = 20,577,787,835.40
  5. Step 5: Solve for x
    x = 20,577,787,835.40/151,810.88
  6. Step 6: Final answer
    x = 135,548.83

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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.