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Finding the Fourth Proportional to 347,635.64, 521,509.86 and 107,693.48

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Solution

The fourth proportional to 347,635.64, 521,509.86 and 107,693.48 is: 161,557.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,635.64 : 521,509.86 = 107,693.48 : x
  2. Step 2: Convert to fraction form
    347,635.64/521,509.86 = 107,693.48/x
  3. Step 3: Cross multiply
    347,635.64x = 521,509.86 × 107,693.48
  4. Step 4: Simplify right side
    347,635.64x = 56,163,211,677.71
  5. Step 5: Solve for x
    x = 56,163,211,677.71/347,635.64
  6. Step 6: Final answer
    x = 161,557.69

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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.