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Finding the Fourth Proportional to 127,340.55, 191,010.83 and 97,816.05

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Solution

The fourth proportional to 127,340.55, 191,010.83 and 97,816.05 is: 146,724.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,340.55 : 191,010.83 = 97,816.05 : x
  2. Step 2: Convert to fraction form
    127,340.55/191,010.83 = 97,816.05/x
  3. Step 3: Cross multiply
    127,340.55x = 191,010.83 × 97,816.05
  4. Step 4: Simplify right side
    127,340.55x = 18,683,924,408.74
  5. Step 5: Solve for x
    x = 18,683,924,408.74/127,340.55
  6. Step 6: Final answer
    x = 146,724.08

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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.