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Finding the Fourth Proportional to 250,974.48, 346,345.32 and 137,804.40

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Solution

The fourth proportional to 250,974.48, 346,345.32 and 137,804.40 is: 190,170.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,974.48 : 346,345.32 = 137,804.40 : x
  2. Step 2: Convert to fraction form
    250,974.48/346,345.32 = 137,804.40/x
  3. Step 3: Cross multiply
    250,974.48x = 346,345.32 × 137,804.40
  4. Step 4: Simplify right side
    250,974.48x = 47,727,909,015.41
  5. Step 5: Solve for x
    x = 47,727,909,015.41/250,974.48
  6. Step 6: Final answer
    x = 190,170.37

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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.