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Finding the Fourth Proportional to 99,326.25, 137,070.23 and 54,614.25

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Solution

The fourth proportional to 99,326.25, 137,070.23 and 54,614.25 is: 75,367.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,326.25 : 137,070.23 = 54,614.25 : x
  2. Step 2: Convert to fraction form
    99,326.25/137,070.23 = 54,614.25/x
  3. Step 3: Cross multiply
    99,326.25x = 137,070.23 × 54,614.25
  4. Step 4: Simplify right side
    99,326.25x = 7,485,987,535.71
  5. Step 5: Solve for x
    x = 7,485,987,535.71/99,326.25
  6. Step 6: Final answer
    x = 75,367.67

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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.