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Finding the Fourth Proportional to 185,737.86, 256,435.47 and 137,934.90

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Solution

The fourth proportional to 185,737.86, 256,435.47 and 137,934.90 is: 190,437.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,737.86 : 256,435.47 = 137,934.90 : x
  2. Step 2: Convert to fraction form
    185,737.86/256,435.47 = 137,934.90/x
  3. Step 3: Cross multiply
    185,737.86x = 256,435.47 × 137,934.90
  4. Step 4: Simplify right side
    185,737.86x = 35,371,400,910.90
  5. Step 5: Solve for x
    x = 35,371,400,910.90/185,737.86
  6. Step 6: Final answer
    x = 190,437.22

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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.