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Finding the Fourth Proportional to 117,471.54, 176,353.80 and 116,931.81

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Solution

The fourth proportional to 117,471.54, 176,353.80 and 116,931.81 is: 175,543.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,471.54 : 176,353.80 = 116,931.81 : x
  2. Step 2: Convert to fraction form
    117,471.54/176,353.80 = 116,931.81/x
  3. Step 3: Cross multiply
    117,471.54x = 176,353.80 × 116,931.81
  4. Step 4: Simplify right side
    117,471.54x = 20,621,369,034.38
  5. Step 5: Solve for x
    x = 20,621,369,034.38/117,471.54
  6. Step 6: Final answer
    x = 175,543.53

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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.