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Finding the Fourth Proportional to 347,216.46, 520,866.36 and 122,530.50

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Solution

The fourth proportional to 347,216.46, 520,866.36 and 122,530.50 is: 183,810.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,216.46 : 520,866.36 = 122,530.50 : x
  2. Step 2: Convert to fraction form
    347,216.46/520,866.36 = 122,530.50/x
  3. Step 3: Cross multiply
    347,216.46x = 520,866.36 × 122,530.50
  4. Step 4: Simplify right side
    347,216.46x = 63,822,015,523.98
  5. Step 5: Solve for x
    x = 63,822,015,523.98/347,216.46
  6. Step 6: Final answer
    x = 183,810.46

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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.