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Finding the Fourth Proportional to 552,251.12, 828,279.47 and 147,448.35

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Solution

The fourth proportional to 552,251.12, 828,279.47 and 147,448.35 is: 221,146.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,251.12 : 828,279.47 = 147,448.35 : x
  2. Step 2: Convert to fraction form
    552,251.12/828,279.47 = 147,448.35/x
  3. Step 3: Cross multiply
    552,251.12x = 828,279.47 × 147,448.35
  4. Step 4: Simplify right side
    552,251.12x = 122,128,440,453.13
  5. Step 5: Solve for x
    x = 122,128,440,453.13/552,251.12
  6. Step 6: Final answer
    x = 221,146.57

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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.