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Finding the Fourth Proportional to 110,967.78, 153,135.51 and 60,666.78

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Solution

The fourth proportional to 110,967.78, 153,135.51 and 60,666.78 is: 83,720.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,967.78 : 153,135.51 = 60,666.78 : x
  2. Step 2: Convert to fraction form
    110,967.78/153,135.51 = 60,666.78/x
  3. Step 3: Cross multiply
    110,967.78x = 153,135.51 × 60,666.78
  4. Step 4: Simplify right side
    110,967.78x = 9,290,238,295.36
  5. Step 5: Solve for x
    x = 9,290,238,295.36/110,967.78
  6. Step 6: Final answer
    x = 83,720.14

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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.