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Finding the Fourth Proportional to 155,300.06, 214,029.87 and 112,784.78

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Solution

The fourth proportional to 155,300.06, 214,029.87 and 112,784.78 is: 155,436.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,300.06 : 214,029.87 = 112,784.78 : x
  2. Step 2: Convert to fraction form
    155,300.06/214,029.87 = 112,784.78/x
  3. Step 3: Cross multiply
    155,300.06x = 214,029.87 × 112,784.78
  4. Step 4: Simplify right side
    155,300.06x = 24,139,311,801.38
  5. Step 5: Solve for x
    x = 24,139,311,801.38/155,300.06
  6. Step 6: Final answer
    x = 155,436.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.