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Finding the Fourth Proportional to 177,710.80, 266,128.80 and 118,224.40

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Solution

The fourth proportional to 177,710.80, 266,128.80 and 118,224.40 is: 177,045.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,710.80 : 266,128.80 = 118,224.40 : x
  2. Step 2: Convert to fraction form
    177,710.80/266,128.80 = 118,224.40/x
  3. Step 3: Cross multiply
    177,710.80x = 266,128.80 × 118,224.40
  4. Step 4: Simplify right side
    177,710.80x = 31,462,917,702.72
  5. Step 5: Solve for x
    x = 31,462,917,702.72/177,710.80
  6. Step 6: Final answer
    x = 177,045.61

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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.