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Finding the Fourth Proportional to 347,074.88, 520,630.56 and 97,776.32

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Solution

The fourth proportional to 347,074.88, 520,630.56 and 97,776.32 is: 146,669.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,074.88 : 520,630.56 = 97,776.32 : x
  2. Step 2: Convert to fraction form
    347,074.88/520,630.56 = 97,776.32/x
  3. Step 3: Cross multiply
    347,074.88x = 520,630.56 × 97,776.32
  4. Step 4: Simplify right side
    347,074.88x = 50,905,340,236.34
  5. Step 5: Solve for x
    x = 50,905,340,236.34/347,074.88
  6. Step 6: Final answer
    x = 146,669.62

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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.