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Finding the Fourth Proportional to 368,150.59, 552,089.15 and 128,202.87

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Solution

The fourth proportional to 368,150.59, 552,089.15 and 128,202.87 is: 192,256.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,150.59 : 552,089.15 = 128,202.87 : x
  2. Step 2: Convert to fraction form
    368,150.59/552,089.15 = 128,202.87/x
  3. Step 3: Cross multiply
    368,150.59x = 552,089.15 × 128,202.87
  4. Step 4: Simplify right side
    368,150.59x = 70,779,413,525.86
  5. Step 5: Solve for x
    x = 70,779,413,525.86/368,150.59
  6. Step 6: Final answer
    x = 192,256.69

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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.