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Finding the Fourth Proportional to 172,887.48, 238,581.45 and 97,435.98

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Solution

The fourth proportional to 172,887.48, 238,581.45 and 97,435.98 is: 134,459.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,887.48 : 238,581.45 = 97,435.98 : x
  2. Step 2: Convert to fraction form
    172,887.48/238,581.45 = 97,435.98/x
  3. Step 3: Cross multiply
    172,887.48x = 238,581.45 × 97,435.98
  4. Step 4: Simplify right side
    172,887.48x = 23,246,417,390.57
  5. Step 5: Solve for x
    x = 23,246,417,390.57/172,887.48
  6. Step 6: Final answer
    x = 134,459.81

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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.