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Finding the Fourth Proportional to 118,297.70, 177,434.52 and 39,403.42

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Solution

The fourth proportional to 118,297.70, 177,434.52 and 39,403.42 is: 59,101.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,297.70 : 177,434.52 = 39,403.42 : x
  2. Step 2: Convert to fraction form
    118,297.70/177,434.52 = 39,403.42/x
  3. Step 3: Cross multiply
    118,297.70x = 177,434.52 × 39,403.42
  4. Step 4: Simplify right side
    118,297.70x = 6,991,526,914.06
  5. Step 5: Solve for x
    x = 6,991,526,914.06/118,297.70
  6. Step 6: Final answer
    x = 59,101.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.