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Finding the Fourth Proportional to 176,661.20, 265,121.40 and 117,477.20

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Solution

The fourth proportional to 176,661.20, 265,121.40 and 117,477.20 is: 176,301.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,661.20 : 265,121.40 = 117,477.20 : x
  2. Step 2: Convert to fraction form
    176,661.20/265,121.40 = 117,477.20/x
  3. Step 3: Cross multiply
    176,661.20x = 265,121.40 × 117,477.20
  4. Step 4: Simplify right side
    176,661.20x = 31,145,719,732.08
  5. Step 5: Solve for x
    x = 31,145,719,732.08/176,661.20
  6. Step 6: Final answer
    x = 176,301.98

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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.