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Finding the Fourth Proportional to 147,763.44, 203,980.68 and 94,122

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Solution

The fourth proportional to 147,763.44, 203,980.68 and 94,122 is: 129,931.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,763.44 : 203,980.68 = 94,122 : x
  2. Step 2: Convert to fraction form
    147,763.44/203,980.68 = 94,122/x
  3. Step 3: Cross multiply
    147,763.44x = 203,980.68 × 94,122
  4. Step 4: Simplify right side
    147,763.44x = 19,199,069,562.96
  5. Step 5: Solve for x
    x = 19,199,069,562.96/147,763.44
  6. Step 6: Final answer
    x = 129,931.12

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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.