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Finding the Fourth Proportional to 117,805.60, 176,708.40 and 104,903.20

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Solution

The fourth proportional to 117,805.60, 176,708.40 and 104,903.20 is: 157,354.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,805.60 : 176,708.40 = 104,903.20 : x
  2. Step 2: Convert to fraction form
    117,805.60/176,708.40 = 104,903.20/x
  3. Step 3: Cross multiply
    117,805.60x = 176,708.40 × 104,903.20
  4. Step 4: Simplify right side
    117,805.60x = 18,537,276,626.88
  5. Step 5: Solve for x
    x = 18,537,276,626.88/117,805.60
  6. Step 6: Final answer
    x = 157,354.80

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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.