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Finding the Fourth Proportional to 111,016, 153,202.20 and 60,715.12

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Solution

The fourth proportional to 111,016, 153,202.20 and 60,715.12 is: 83,786.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,016 : 153,202.20 = 60,715.12 : x
  2. Step 2: Convert to fraction form
    111,016/153,202.20 = 60,715.12/x
  3. Step 3: Cross multiply
    111,016x = 153,202.20 × 60,715.12
  4. Step 4: Simplify right side
    111,016x = 9,301,689,957.26
  5. Step 5: Solve for x
    x = 9,301,689,957.26/111,016
  6. Step 6: Final answer
    x = 83,786.93

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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.