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Finding the Fourth Proportional to 105,202.80, 157,415.40 and 95,871.60

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Solution

The fourth proportional to 105,202.80, 157,415.40 and 95,871.60 is: 143,453.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,202.80 : 157,415.40 = 95,871.60 : x
  2. Step 2: Convert to fraction form
    105,202.80/157,415.40 = 95,871.60/x
  3. Step 3: Cross multiply
    105,202.80x = 157,415.40 × 95,871.60
  4. Step 4: Simplify right side
    105,202.80x = 15,091,666,262.64
  5. Step 5: Solve for x
    x = 15,091,666,262.64/105,202.80
  6. Step 6: Final answer
    x = 143,453.09

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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.