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Finding the Fourth Proportional to 207,047.30, 310,461.60 and 88,584.80

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Solution

The fourth proportional to 207,047.30, 310,461.60 and 88,584.80 is: 132,830.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,047.30 : 310,461.60 = 88,584.80 : x
  2. Step 2: Convert to fraction form
    207,047.30/310,461.60 = 88,584.80/x
  3. Step 3: Cross multiply
    207,047.30x = 310,461.60 × 88,584.80
  4. Step 4: Simplify right side
    207,047.30x = 27,502,178,743.68
  5. Step 5: Solve for x
    x = 27,502,178,743.68/207,047.30
  6. Step 6: Final answer
    x = 132,830.41

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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.