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Finding the Fourth Proportional to 250,402.76, 345,588.90 and 142,948.52

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Solution

The fourth proportional to 250,402.76, 345,588.90 and 142,948.52 is: 197,287.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,402.76 : 345,588.90 = 142,948.52 : x
  2. Step 2: Convert to fraction form
    250,402.76/345,588.90 = 142,948.52/x
  3. Step 3: Cross multiply
    250,402.76x = 345,588.90 × 142,948.52
  4. Step 4: Simplify right side
    250,402.76x = 49,401,421,783.43
  5. Step 5: Solve for x
    x = 49,401,421,783.43/250,402.76
  6. Step 6: Final answer
    x = 197,287.85

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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.