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Finding the Fourth Proportional to 172,099.60, 237,551.88 and 100,508.56

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Solution

The fourth proportional to 172,099.60, 237,551.88 and 100,508.56 is: 138,733.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,099.60 : 237,551.88 = 100,508.56 : x
  2. Step 2: Convert to fraction form
    172,099.60/237,551.88 = 100,508.56/x
  3. Step 3: Cross multiply
    172,099.60x = 237,551.88 × 100,508.56
  4. Step 4: Simplify right side
    172,099.60x = 23,875,997,384.09
  5. Step 5: Solve for x
    x = 23,875,997,384.09/172,099.60
  6. Step 6: Final answer
    x = 138,733.60

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1.5x scale

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.