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Finding the Fourth Proportional to 153,195.75, 211,323.86 and 91,926.09

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Solution

The fourth proportional to 153,195.75, 211,323.86 and 91,926.09 is: 126,806.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,195.75 : 211,323.86 = 91,926.09 : x
  2. Step 2: Convert to fraction form
    153,195.75/211,323.86 = 91,926.09/x
  3. Step 3: Cross multiply
    153,195.75x = 211,323.86 × 91,926.09
  4. Step 4: Simplify right side
    153,195.75x = 19,426,176,173.51
  5. Step 5: Solve for x
    x = 19,426,176,173.51/153,195.75
  6. Step 6: Final answer
    x = 126,806.23

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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.