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Finding the Fourth Proportional to 353,969.40, 530,954.10 and 167,345.40

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Solution

The fourth proportional to 353,969.40, 530,954.10 and 167,345.40 is: 251,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,969.40 : 530,954.10 = 167,345.40 : x
  2. Step 2: Convert to fraction form
    353,969.40/530,954.10 = 167,345.40/x
  3. Step 3: Cross multiply
    353,969.40x = 530,954.10 × 167,345.40
  4. Step 4: Simplify right side
    353,969.40x = 88,852,726,246.14
  5. Step 5: Solve for x
    x = 88,852,726,246.14/353,969.40
  6. Step 6: Final answer
    x = 251,018.10

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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.