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Finding the Fourth Proportional to 348,856.60, 523,323.30 and 127,288.60

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Solution

The fourth proportional to 348,856.60, 523,323.30 and 127,288.60 is: 190,946.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,856.60 : 523,323.30 = 127,288.60 : x
  2. Step 2: Convert to fraction form
    348,856.60/523,323.30 = 127,288.60/x
  3. Step 3: Cross multiply
    348,856.60x = 523,323.30 × 127,288.60
  4. Step 4: Simplify right side
    348,856.60x = 66,613,090,204.38
  5. Step 5: Solve for x
    x = 66,613,090,204.38/348,856.60
  6. Step 6: Final answer
    x = 190,946.91

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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.