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Finding the Fourth Proportional to 435,558.06, 653,340.42 and 120,032.28

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Solution

The fourth proportional to 435,558.06, 653,340.42 and 120,032.28 is: 180,049.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,558.06 : 653,340.42 = 120,032.28 : x
  2. Step 2: Convert to fraction form
    435,558.06/653,340.42 = 120,032.28/x
  3. Step 3: Cross multiply
    435,558.06x = 653,340.42 × 120,032.28
  4. Step 4: Simplify right side
    435,558.06x = 78,421,940,228.76
  5. Step 5: Solve for x
    x = 78,421,940,228.76/435,558.06
  6. Step 6: Final answer
    x = 180,049.34

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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.