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Finding the Fourth Proportional to 192,931.92, 266,239.86 and 106,887.36

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Solution

The fourth proportional to 192,931.92, 266,239.86 and 106,887.36 is: 147,501.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,931.92 : 266,239.86 = 106,887.36 : x
  2. Step 2: Convert to fraction form
    192,931.92/266,239.86 = 106,887.36/x
  3. Step 3: Cross multiply
    192,931.92x = 266,239.86 × 106,887.36
  4. Step 4: Simplify right side
    192,931.92x = 28,457,675,762.17
  5. Step 5: Solve for x
    x = 28,457,675,762.17/192,931.92
  6. Step 6: Final answer
    x = 147,501.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.