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Finding the Fourth Proportional to 246,812.70, 370,255.26 and 78,276.84

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Solution

The fourth proportional to 246,812.70, 370,255.26 and 78,276.84 is: 117,426.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,812.70 : 370,255.26 = 78,276.84 : x
  2. Step 2: Convert to fraction form
    246,812.70/370,255.26 = 78,276.84/x
  3. Step 3: Cross multiply
    246,812.70x = 370,255.26 × 78,276.84
  4. Step 4: Simplify right side
    246,812.70x = 28,982,411,746.18
  5. Step 5: Solve for x
    x = 28,982,411,746.18/246,812.70
  6. Step 6: Final answer
    x = 117,426.74

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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.