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Finding the Fourth Proportional to 292,818.30, 439,227.45 and 71,202.30

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Solution

The fourth proportional to 292,818.30, 439,227.45 and 71,202.30 is: 106,803.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,818.30 : 439,227.45 = 71,202.30 : x
  2. Step 2: Convert to fraction form
    292,818.30/439,227.45 = 71,202.30/x
  3. Step 3: Cross multiply
    292,818.30x = 439,227.45 × 71,202.30
  4. Step 4: Simplify right side
    292,818.30x = 31,274,004,663.14
  5. Step 5: Solve for x
    x = 31,274,004,663.14/292,818.30
  6. Step 6: Final answer
    x = 106,803.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.