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Finding the Fourth Proportional to 126,524, 174,588 and 69,927.68

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Solution

The fourth proportional to 126,524, 174,588 and 69,927.68 is: 96,491.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,524 : 174,588 = 69,927.68 : x
  2. Step 2: Convert to fraction form
    126,524/174,588 = 69,927.68/x
  3. Step 3: Cross multiply
    126,524x = 174,588 × 69,927.68
  4. Step 4: Simplify right side
    126,524x = 12,208,533,795.84
  5. Step 5: Solve for x
    x = 12,208,533,795.84/126,524
  6. Step 6: Final answer
    x = 96,491.84

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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.