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Finding the Fourth Proportional to 250,894.71, 346,222.89 and 136,170.77

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Solution

The fourth proportional to 250,894.71, 346,222.89 and 136,170.77 is: 187,909.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,894.71 : 346,222.89 = 136,170.77 : x
  2. Step 2: Convert to fraction form
    250,894.71/346,222.89 = 136,170.77/x
  3. Step 3: Cross multiply
    250,894.71x = 346,222.89 × 136,170.77
  4. Step 4: Simplify right side
    250,894.71x = 47,145,435,791.81
  5. Step 5: Solve for x
    x = 47,145,435,791.81/250,894.71
  6. Step 6: Final answer
    x = 187,909.25

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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.