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Finding the Fourth Proportional to 190,930.80, 286,396.20 and 173,434.80

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Solution

The fourth proportional to 190,930.80, 286,396.20 and 173,434.80 is: 260,152.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,930.80 : 286,396.20 = 173,434.80 : x
  2. Step 2: Convert to fraction form
    190,930.80/286,396.20 = 173,434.80/x
  3. Step 3: Cross multiply
    190,930.80x = 286,396.20 × 173,434.80
  4. Step 4: Simplify right side
    190,930.80x = 49,671,067,667.76
  5. Step 5: Solve for x
    x = 49,671,067,667.76/190,930.80
  6. Step 6: Final answer
    x = 260,152.20

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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.