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Finding the Fourth Proportional to 228,128.51, 342,163.59 and 94,983.95

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Solution

The fourth proportional to 228,128.51, 342,163.59 and 94,983.95 is: 142,463.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,128.51 : 342,163.59 = 94,983.95 : x
  2. Step 2: Convert to fraction form
    228,128.51/342,163.59 = 94,983.95/x
  3. Step 3: Cross multiply
    228,128.51x = 342,163.59 × 94,983.95
  4. Step 4: Simplify right side
    228,128.51x = 32,500,047,613.56
  5. Step 5: Solve for x
    x = 32,500,047,613.56/228,128.51
  6. Step 6: Final answer
    x = 142,463.77

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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.