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Finding the Fourth Proportional to 172,152.44, 237,688.63 and 107,649.61

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Solution

The fourth proportional to 172,152.44, 237,688.63 and 107,649.61 is: 148,630.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,152.44 : 237,688.63 = 107,649.61 : x
  2. Step 2: Convert to fraction form
    172,152.44/237,688.63 = 107,649.61/x
  3. Step 3: Cross multiply
    172,152.44x = 237,688.63 × 107,649.61
  4. Step 4: Simplify right side
    172,152.44x = 25,587,087,457.59
  5. Step 5: Solve for x
    x = 25,587,087,457.59/172,152.44
  6. Step 6: Final answer
    x = 148,630.41

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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.