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Finding the Fourth Proportional to 555,142, 832,736.04 and 161,158

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Solution

The fourth proportional to 555,142, 832,736.04 and 161,158 is: 241,743.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,142 : 832,736.04 = 161,158 : x
  2. Step 2: Convert to fraction form
    555,142/832,736.04 = 161,158/x
  3. Step 3: Cross multiply
    555,142x = 832,736.04 × 161,158
  4. Step 4: Simplify right side
    555,142x = 134,202,074,734.32
  5. Step 5: Solve for x
    x = 134,202,074,734.32/555,142
  6. Step 6: Final answer
    x = 241,743.69

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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.