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Finding the Fourth Proportional to 347,630.64, 521,502.36 and 107,688.48

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Solution

The fourth proportional to 347,630.64, 521,502.36 and 107,688.48 is: 161,550.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,630.64 : 521,502.36 = 107,688.48 : x
  2. Step 2: Convert to fraction form
    347,630.64/521,502.36 = 107,688.48/x
  3. Step 3: Cross multiply
    347,630.64x = 521,502.36 × 107,688.48
  4. Step 4: Simplify right side
    347,630.64x = 56,159,796,464.81
  5. Step 5: Solve for x
    x = 56,159,796,464.81/347,630.64
  6. Step 6: Final answer
    x = 161,550.19

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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.