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Finding the Fourth Proportional to 347,296.64, 520,808.64 and 122,609.12

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Solution

The fourth proportional to 347,296.64, 520,808.64 and 122,609.12 is: 183,865.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,296.64 : 520,808.64 = 122,609.12 : x
  2. Step 2: Convert to fraction form
    347,296.64/520,808.64 = 122,609.12/x
  3. Step 3: Cross multiply
    347,296.64x = 520,808.64 × 122,609.12
  4. Step 4: Simplify right side
    347,296.64x = 63,855,889,038.80
  5. Step 5: Solve for x
    x = 63,855,889,038.80/347,296.64
  6. Step 6: Final answer
    x = 183,865.55

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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.