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Finding the Fourth Proportional to 111,528.51, 153,904.08 and 60,540.09

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Solution

The fourth proportional to 111,528.51, 153,904.08 and 60,540.09 is: 83,542.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,528.51 : 153,904.08 = 60,540.09 : x
  2. Step 2: Convert to fraction form
    111,528.51/153,904.08 = 60,540.09/x
  3. Step 3: Cross multiply
    111,528.51x = 153,904.08 × 60,540.09
  4. Step 4: Simplify right side
    111,528.51x = 9,317,366,854.57
  5. Step 5: Solve for x
    x = 9,317,366,854.57/111,528.51
  6. Step 6: Final answer
    x = 83,542.47

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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.