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Finding the Fourth Proportional to 135,460.64, 203,223.40 and 56,530.96

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Solution

The fourth proportional to 135,460.64, 203,223.40 and 56,530.96 is: 84,809.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,460.64 : 203,223.40 = 56,530.96 : x
  2. Step 2: Convert to fraction form
    135,460.64/203,223.40 = 56,530.96/x
  3. Step 3: Cross multiply
    135,460.64x = 203,223.40 × 56,530.96
  4. Step 4: Simplify right side
    135,460.64x = 11,488,413,896.46
  5. Step 5: Solve for x
    x = 11,488,413,896.46/135,460.64
  6. Step 6: Final answer
    x = 84,809.98

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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.