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Finding the Fourth Proportional to 162,953.45, 224,875.05 and 91,333.47

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Solution

The fourth proportional to 162,953.45, 224,875.05 and 91,333.47 is: 126,039.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,953.45 : 224,875.05 = 91,333.47 : x
  2. Step 2: Convert to fraction form
    162,953.45/224,875.05 = 91,333.47/x
  3. Step 3: Cross multiply
    162,953.45x = 224,875.05 × 91,333.47
  4. Step 4: Simplify right side
    162,953.45x = 20,538,619,133.70
  5. Step 5: Solve for x
    x = 20,538,619,133.70/162,953.45
  6. Step 6: Final answer
    x = 126,039.79

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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.