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Finding the Fourth Proportional to 111,201.72, 153,459.90 and 60,901.08

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Solution

The fourth proportional to 111,201.72, 153,459.90 and 60,901.08 is: 84,044.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,201.72 : 153,459.90 = 60,901.08 : x
  2. Step 2: Convert to fraction form
    111,201.72/153,459.90 = 60,901.08/x
  3. Step 3: Cross multiply
    111,201.72x = 153,459.90 × 60,901.08
  4. Step 4: Simplify right side
    111,201.72x = 9,345,873,646.69
  5. Step 5: Solve for x
    x = 9,345,873,646.69/111,201.72
  6. Step 6: Final answer
    x = 84,044.33

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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.