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Finding the Fourth Proportional to 114,244.26, 157,675.80 and 78,404.82

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Solution

The fourth proportional to 114,244.26, 157,675.80 and 78,404.82 is: 108,211.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,244.26 : 157,675.80 = 78,404.82 : x
  2. Step 2: Convert to fraction form
    114,244.26/157,675.80 = 78,404.82/x
  3. Step 3: Cross multiply
    114,244.26x = 157,675.80 × 78,404.82
  4. Step 4: Simplify right side
    114,244.26x = 12,362,542,717.36
  5. Step 5: Solve for x
    x = 12,362,542,717.36/114,244.26
  6. Step 6: Final answer
    x = 108,211.50

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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.