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Finding the Fourth Proportional to 172,801.02, 238,415.72 and 112,460.48

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Solution

The fourth proportional to 172,801.02, 238,415.72 and 112,460.48 is: 155,163.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,801.02 : 238,415.72 = 112,460.48 : x
  2. Step 2: Convert to fraction form
    172,801.02/238,415.72 = 112,460.48/x
  3. Step 3: Cross multiply
    172,801.02x = 238,415.72 × 112,460.48
  4. Step 4: Simplify right side
    172,801.02x = 26,812,346,310.75
  5. Step 5: Solve for x
    x = 26,812,346,310.75/172,801.02
  6. Step 6: Final answer
    x = 155,163.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.