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Finding the Fourth Proportional to 110,967.50, 153,135.70 and 60,666.50

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Solution

The fourth proportional to 110,967.50, 153,135.70 and 60,666.50 is: 83,720.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,967.50 : 153,135.70 = 60,666.50 : x
  2. Step 2: Convert to fraction form
    110,967.50/153,135.70 = 60,666.50/x
  3. Step 3: Cross multiply
    110,967.50x = 153,135.70 × 60,666.50
  4. Step 4: Simplify right side
    110,967.50x = 9,290,206,944.05
  5. Step 5: Solve for x
    x = 9,290,206,944.05/110,967.50
  6. Step 6: Final answer
    x = 83,720.07

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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.