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Finding the Fourth Proportional to 168,607.16, 252,904.90 and 42,248.51

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Solution

The fourth proportional to 168,607.16, 252,904.90 and 42,248.51 is: 63,371.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,607.16 : 252,904.90 = 42,248.51 : x
  2. Step 2: Convert to fraction form
    168,607.16/252,904.90 = 42,248.51/x
  3. Step 3: Cross multiply
    168,607.16x = 252,904.90 × 42,248.51
  4. Step 4: Simplify right side
    168,607.16x = 10,684,855,196.70
  5. Step 5: Solve for x
    x = 10,684,855,196.70/168,607.16
  6. Step 6: Final answer
    x = 63,371.30

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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.