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Finding the Fourth Proportional to 190,884.69, 286,200.66 and 91,060.29

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Solution

The fourth proportional to 190,884.69, 286,200.66 and 91,060.29 is: 136,530.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,884.69 : 286,200.66 = 91,060.29 : x
  2. Step 2: Convert to fraction form
    190,884.69/286,200.66 = 91,060.29/x
  3. Step 3: Cross multiply
    190,884.69x = 286,200.66 × 91,060.29
  4. Step 4: Simplify right side
    190,884.69x = 26,061,515,097.79
  5. Step 5: Solve for x
    x = 26,061,515,097.79/190,884.69
  6. Step 6: Final answer
    x = 136,530.15

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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.