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Finding the Fourth Proportional to 117,502.40, 176,039.76 and 104,905.28

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Solution

The fourth proportional to 117,502.40, 176,039.76 and 104,905.28 is: 157,167.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,502.40 : 176,039.76 = 104,905.28 : x
  2. Step 2: Convert to fraction form
    117,502.40/176,039.76 = 104,905.28/x
  3. Step 3: Cross multiply
    117,502.40x = 176,039.76 × 104,905.28
  4. Step 4: Simplify right side
    117,502.40x = 18,467,500,313.93
  5. Step 5: Solve for x
    x = 18,467,500,313.93/117,502.40
  6. Step 6: Final answer
    x = 157,167.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.