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Finding the Fourth Proportional to 105,000.91, 144,904.24 and 57,256.88

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Solution

The fourth proportional to 105,000.91, 144,904.24 and 57,256.88 is: 79,016.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,000.91 : 144,904.24 = 57,256.88 : x
  2. Step 2: Convert to fraction form
    105,000.91/144,904.24 = 57,256.88/x
  3. Step 3: Cross multiply
    105,000.91x = 144,904.24 × 57,256.88
  4. Step 4: Simplify right side
    105,000.91x = 8,296,764,028.22
  5. Step 5: Solve for x
    x = 8,296,764,028.22/105,000.91
  6. Step 6: Final answer
    x = 79,016.12

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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.