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Finding the Fourth Proportional to 357,224.16, 535,462.08 and 120,485.28

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Solution

The fourth proportional to 357,224.16, 535,462.08 and 120,485.28 is: 180,601.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,224.16 : 535,462.08 = 120,485.28 : x
  2. Step 2: Convert to fraction form
    357,224.16/535,462.08 = 120,485.28/x
  3. Step 3: Cross multiply
    357,224.16x = 535,462.08 × 120,485.28
  4. Step 4: Simplify right side
    357,224.16x = 64,515,298,638.18
  5. Step 5: Solve for x
    x = 64,515,298,638.18/357,224.16
  6. Step 6: Final answer
    x = 180,601.72

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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.