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Finding the Fourth Proportional to 147,798.02, 203,994.49 and 96,781.12

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Solution

The fourth proportional to 147,798.02, 203,994.49 and 96,781.12 is: 133,579.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,798.02 : 203,994.49 = 96,781.12 : x
  2. Step 2: Convert to fraction form
    147,798.02/203,994.49 = 96,781.12/x
  3. Step 3: Cross multiply
    147,798.02x = 203,994.49 × 96,781.12
  4. Step 4: Simplify right side
    147,798.02x = 19,742,815,216.03
  5. Step 5: Solve for x
    x = 19,742,815,216.03/147,798.02
  6. Step 6: Final answer
    x = 133,579.70

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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.