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Finding the Fourth Proportional to 262,735.81, 392,664.08 and 191,807.81

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Solution

The fourth proportional to 262,735.81, 392,664.08 and 191,807.81 is: 286,660.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,735.81 : 392,664.08 = 191,807.81 : x
  2. Step 2: Convert to fraction form
    262,735.81/392,664.08 = 191,807.81/x
  3. Step 3: Cross multiply
    262,735.81x = 392,664.08 × 191,807.81
  4. Step 4: Simplify right side
    262,735.81x = 75,316,037,239.15
  5. Step 5: Solve for x
    x = 75,316,037,239.15/262,735.81
  6. Step 6: Final answer
    x = 286,660.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.