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Finding the Fourth Proportional to 357,028.02, 535,543.85 and 120,372.75

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Solution

The fourth proportional to 357,028.02, 535,543.85 and 120,372.75 is: 180,559.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,028.02 : 535,543.85 = 120,372.75 : x
  2. Step 2: Convert to fraction form
    357,028.02/535,543.85 = 120,372.75/x
  3. Step 3: Cross multiply
    357,028.02x = 535,543.85 × 120,372.75
  4. Step 4: Simplify right side
    357,028.02x = 64,464,886,271.02
  5. Step 5: Solve for x
    x = 64,464,886,271.02/357,028.02
  6. Step 6: Final answer
    x = 180,559.74

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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.