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Finding the Fourth Proportional to 246,580.15, 369,866.13 and 78,100.15

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Solution

The fourth proportional to 246,580.15, 369,866.13 and 78,100.15 is: 117,148.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,580.15 : 369,866.13 = 78,100.15 : x
  2. Step 2: Convert to fraction form
    246,580.15/369,866.13 = 78,100.15/x
  3. Step 3: Cross multiply
    246,580.15x = 369,866.13 × 78,100.15
  4. Step 4: Simplify right side
    246,580.15x = 28,886,600,232.92
  5. Step 5: Solve for x
    x = 28,886,600,232.92/246,580.15
  6. Step 6: Final answer
    x = 117,148.93

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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.