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Finding the Fourth Proportional to 250,232.40, 345,305.16 and 137,048.40

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Solution

The fourth proportional to 250,232.40, 345,305.16 and 137,048.40 is: 189,118.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,232.40 : 345,305.16 = 137,048.40 : x
  2. Step 2: Convert to fraction form
    250,232.40/345,305.16 = 137,048.40/x
  3. Step 3: Cross multiply
    250,232.40x = 345,305.16 × 137,048.40
  4. Step 4: Simplify right side
    250,232.40x = 47,323,519,689.74
  5. Step 5: Solve for x
    x = 47,323,519,689.74/250,232.40
  6. Step 6: Final answer
    x = 189,118.27

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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.