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Finding the Fourth Proportional to 392,535.17, 588,817.76 and 122,688.16

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Solution

The fourth proportional to 392,535.17, 588,817.76 and 122,688.16 is: 184,036.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,535.17 : 588,817.76 = 122,688.16 : x
  2. Step 2: Convert to fraction form
    392,535.17/588,817.76 = 122,688.16/x
  3. Step 3: Cross multiply
    392,535.17x = 588,817.76 × 122,688.16
  4. Step 4: Simplify right side
    392,535.17x = 72,240,963,992.19
  5. Step 5: Solve for x
    x = 72,240,963,992.19/392,535.17
  6. Step 6: Final answer
    x = 184,036.92

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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.