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Finding the Fourth Proportional to 128,533.01, 192,548.41 and 88,544.93

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Solution

The fourth proportional to 128,533.01, 192,548.41 and 88,544.93 is: 132,644.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,533.01 : 192,548.41 = 88,544.93 : x
  2. Step 2: Convert to fraction form
    128,533.01/192,548.41 = 88,544.93/x
  3. Step 3: Cross multiply
    128,533.01x = 192,548.41 × 88,544.93
  4. Step 4: Simplify right side
    128,533.01x = 17,049,184,300.96
  5. Step 5: Solve for x
    x = 17,049,184,300.96/128,533.01
  6. Step 6: Final answer
    x = 132,644.41

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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.