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Finding the Fourth Proportional to 176,644.72, 243,665.71 and 111,129.17

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Solution

The fourth proportional to 176,644.72, 243,665.71 and 111,129.17 is: 153,292.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,644.72 : 243,665.71 = 111,129.17 : x
  2. Step 2: Convert to fraction form
    176,644.72/243,665.71 = 111,129.17/x
  3. Step 3: Cross multiply
    176,644.72x = 243,665.71 × 111,129.17
  4. Step 4: Simplify right side
    176,644.72x = 27,078,367,485.30
  5. Step 5: Solve for x
    x = 27,078,367,485.30/176,644.72
  6. Step 6: Final answer
    x = 153,292.82

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1.5x scale

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.