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Finding the Fourth Proportional to 348,989.52, 523,486.38 and 124,358.70

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Solution

The fourth proportional to 348,989.52, 523,486.38 and 124,358.70 is: 186,538.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,989.52 : 523,486.38 = 124,358.70 : x
  2. Step 2: Convert to fraction form
    348,989.52/523,486.38 = 124,358.70/x
  3. Step 3: Cross multiply
    348,989.52x = 523,486.38 × 124,358.70
  4. Step 4: Simplify right side
    348,989.52x = 65,100,085,684.51
  5. Step 5: Solve for x
    x = 65,100,085,684.51/348,989.52
  6. Step 6: Final answer
    x = 186,538.80

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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.