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Finding the Fourth Proportional to 250,615.52, 345,817.55 and 143,192.51

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Solution

The fourth proportional to 250,615.52, 345,817.55 and 143,192.51 is: 197,587.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,615.52 : 345,817.55 = 143,192.51 : x
  2. Step 2: Convert to fraction form
    250,615.52/345,817.55 = 143,192.51/x
  3. Step 3: Cross multiply
    250,615.52x = 345,817.55 × 143,192.51
  4. Step 4: Simplify right side
    250,615.52x = 49,518,482,912.26
  5. Step 5: Solve for x
    x = 49,518,482,912.26/250,615.52
  6. Step 6: Final answer
    x = 197,587.46

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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.