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Finding the Fourth Proportional to 250,969.86, 346,338.99 and 137,799.90

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Solution

The fourth proportional to 250,969.86, 346,338.99 and 137,799.90 is: 190,164.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,969.86 : 346,338.99 = 137,799.90 : x
  2. Step 2: Convert to fraction form
    250,969.86/346,338.99 = 137,799.90/x
  3. Step 3: Cross multiply
    250,969.86x = 346,338.99 × 137,799.90
  4. Step 4: Simplify right side
    250,969.86x = 47,725,478,188.10
  5. Step 5: Solve for x
    x = 47,725,478,188.10/250,969.86
  6. Step 6: Final answer
    x = 190,164.18

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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.