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Finding the Fourth Proportional to 111,357.76, 167,036.64 and 27,117.40

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Solution

The fourth proportional to 111,357.76, 167,036.64 and 27,117.40 is: 40,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,357.76 : 167,036.64 = 27,117.40 : x
  2. Step 2: Convert to fraction form
    111,357.76/167,036.64 = 27,117.40/x
  3. Step 3: Cross multiply
    111,357.76x = 167,036.64 × 27,117.40
  4. Step 4: Simplify right side
    111,357.76x = 4,529,599,381.54
  5. Step 5: Solve for x
    x = 4,529,599,381.54/111,357.76
  6. Step 6: Final answer
    x = 40,676.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.