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Finding the Fourth Proportional to 145,243.95, 217,900.95 and 50,460.33

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Solution

The fourth proportional to 145,243.95, 217,900.95 and 50,460.33 is: 75,702.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,243.95 : 217,900.95 = 50,460.33 : x
  2. Step 2: Convert to fraction form
    145,243.95/217,900.95 = 50,460.33/x
  3. Step 3: Cross multiply
    145,243.95x = 217,900.95 × 50,460.33
  4. Step 4: Simplify right side
    145,243.95x = 10,995,353,844.31
  5. Step 5: Solve for x
    x = 10,995,353,844.31/145,243.95
  6. Step 6: Final answer
    x = 75,702.66

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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.