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Finding the Fourth Proportional to 111,898.64, 154,420.26 and 61,597.64

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Solution

The fourth proportional to 111,898.64, 154,420.26 and 61,597.64 is: 85,004.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,898.64 : 154,420.26 = 61,597.64 : x
  2. Step 2: Convert to fraction form
    111,898.64/154,420.26 = 61,597.64/x
  3. Step 3: Cross multiply
    111,898.64x = 154,420.26 × 61,597.64
  4. Step 4: Simplify right side
    111,898.64x = 9,511,923,584.19
  5. Step 5: Solve for x
    x = 9,511,923,584.19/111,898.64
  6. Step 6: Final answer
    x = 85,004.82

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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.