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Finding the Fourth Proportional to 535,011.12, 802,519.74 and 135,652.77

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Solution

The fourth proportional to 535,011.12, 802,519.74 and 135,652.77 is: 203,479.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,011.12 : 802,519.74 = 135,652.77 : x
  2. Step 2: Convert to fraction form
    535,011.12/802,519.74 = 135,652.77/x
  3. Step 3: Cross multiply
    535,011.12x = 802,519.74 × 135,652.77
  4. Step 4: Simplify right side
    535,011.12x = 108,864,025,710.68
  5. Step 5: Solve for x
    x = 108,864,025,710.68/535,011.12
  6. Step 6: Final answer
    x = 203,479.93

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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.