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Finding the Fourth Proportional to 111,134.94, 153,349.74 and 67,504.83

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Solution

The fourth proportional to 111,134.94, 153,349.74 and 67,504.83 is: 93,146.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,134.94 : 153,349.74 = 67,504.83 : x
  2. Step 2: Convert to fraction form
    111,134.94/153,349.74 = 67,504.83/x
  3. Step 3: Cross multiply
    111,134.94x = 153,349.74 × 67,504.83
  4. Step 4: Simplify right side
    111,134.94x = 10,351,848,129.24
  5. Step 5: Solve for x
    x = 10,351,848,129.24/111,134.94
  6. Step 6: Final answer
    x = 93,146.66

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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.