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Finding the Fourth Proportional to 250,974.88, 346,345.90 and 137,804.92

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Solution

The fourth proportional to 250,974.88, 346,345.90 and 137,804.92 is: 190,171.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,974.88 : 346,345.90 = 137,804.92 : x
  2. Step 2: Convert to fraction form
    250,974.88/346,345.90 = 137,804.92/x
  3. Step 3: Cross multiply
    250,974.88x = 346,345.90 × 137,804.92
  4. Step 4: Simplify right side
    250,974.88x = 47,728,169,041.83
  5. Step 5: Solve for x
    x = 47,728,169,041.83/250,974.88
  6. Step 6: Final answer
    x = 190,171.10

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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.