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Finding the Fourth Proportional to 127,157.72, 175,509.30 and 73,473.80

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Solution

The fourth proportional to 127,157.72, 175,509.30 and 73,473.80 is: 101,412.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,157.72 : 175,509.30 = 73,473.80 : x
  2. Step 2: Convert to fraction form
    127,157.72/175,509.30 = 73,473.80/x
  3. Step 3: Cross multiply
    127,157.72x = 175,509.30 × 73,473.80
  4. Step 4: Simplify right side
    127,157.72x = 12,895,335,206.34
  5. Step 5: Solve for x
    x = 12,895,335,206.34/127,157.72
  6. Step 6: Final answer
    x = 101,412.13

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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.