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Finding the Fourth Proportional to 403,340.63, 605,049.01 and 119,032.25

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Solution

The fourth proportional to 403,340.63, 605,049.01 and 119,032.25 is: 178,559.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,340.63 : 605,049.01 = 119,032.25 : x
  2. Step 2: Convert to fraction form
    403,340.63/605,049.01 = 119,032.25/x
  3. Step 3: Cross multiply
    403,340.63x = 605,049.01 × 119,032.25
  4. Step 4: Simplify right side
    403,340.63x = 72,020,341,697.75
  5. Step 5: Solve for x
    x = 72,020,341,697.75/403,340.63
  6. Step 6: Final answer
    x = 178,559.60

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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.