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Finding the Fourth Proportional to 71,051.40, 98,050.50 and 42,751.08

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Solution

The fourth proportional to 71,051.40, 98,050.50 and 42,751.08 is: 58,996.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,051.40 : 98,050.50 = 42,751.08 : x
  2. Step 2: Convert to fraction form
    71,051.40/98,050.50 = 42,751.08/x
  3. Step 3: Cross multiply
    71,051.40x = 98,050.50 × 42,751.08
  4. Step 4: Simplify right side
    71,051.40x = 4,191,764,769.54
  5. Step 5: Solve for x
    x = 4,191,764,769.54/71,051.40
  6. Step 6: Final answer
    x = 58,996.23

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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.