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Finding the Fourth Proportional to 277,930.40, 416,588.40 and 153,360.80

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Solution

The fourth proportional to 277,930.40, 416,588.40 and 153,360.80 is: 229,871.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,930.40 : 416,588.40 = 153,360.80 : x
  2. Step 2: Convert to fraction form
    277,930.40/416,588.40 = 153,360.80/x
  3. Step 3: Cross multiply
    277,930.40x = 416,588.40 × 153,360.80
  4. Step 4: Simplify right side
    277,930.40x = 63,888,330,294.72
  5. Step 5: Solve for x
    x = 63,888,330,294.72/277,930.40
  6. Step 6: Final answer
    x = 229,871.69

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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.