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Finding the Fourth Proportional to 101,679.03, 140,316.71 and 56,967.03

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Solution

The fourth proportional to 101,679.03, 140,316.71 and 56,967.03 is: 78,614.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,679.03 : 140,316.71 = 56,967.03 : x
  2. Step 2: Convert to fraction form
    101,679.03/140,316.71 = 56,967.03/x
  3. Step 3: Cross multiply
    101,679.03x = 140,316.71 × 56,967.03
  4. Step 4: Simplify right side
    101,679.03x = 7,993,425,943.24
  5. Step 5: Solve for x
    x = 7,993,425,943.24/101,679.03
  6. Step 6: Final answer
    x = 78,614.30

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1.5x scale

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.