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Finding the Fourth Proportional to 109,419.60, 151,123.60 and 73,547.33

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Solution

The fourth proportional to 109,419.60, 151,123.60 and 73,547.33 is: 101,579.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,419.60 : 151,123.60 = 73,547.33 : x
  2. Step 2: Convert to fraction form
    109,419.60/151,123.60 = 73,547.33/x
  3. Step 3: Cross multiply
    109,419.60x = 151,123.60 × 73,547.33
  4. Step 4: Simplify right side
    109,419.60x = 11,114,737,745.95
  5. Step 5: Solve for x
    x = 11,114,737,745.95/109,419.60
  6. Step 6: Final answer
    x = 101,579.04

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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.