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Finding the Fourth Proportional to 111,534.16, 153,917.40 and 61,236.40

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Solution

The fourth proportional to 111,534.16, 153,917.40 and 61,236.40 is: 84,506.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,534.16 : 153,917.40 = 61,236.40 : x
  2. Step 2: Convert to fraction form
    111,534.16/153,917.40 = 61,236.40/x
  3. Step 3: Cross multiply
    111,534.16x = 153,917.40 × 61,236.40
  4. Step 4: Simplify right side
    111,534.16x = 9,425,347,473.36
  5. Step 5: Solve for x
    x = 9,425,347,473.36/111,534.16
  6. Step 6: Final answer
    x = 84,506.37

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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.