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Finding the Fourth Proportional to 143,322.54, 215,070.24 and 49,893.90

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Solution

The fourth proportional to 143,322.54, 215,070.24 and 49,893.90 is: 74,870.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,322.54 : 215,070.24 = 49,893.90 : x
  2. Step 2: Convert to fraction form
    143,322.54/215,070.24 = 49,893.90/x
  3. Step 3: Cross multiply
    143,322.54x = 215,070.24 × 49,893.90
  4. Step 4: Simplify right side
    143,322.54x = 10,730,693,047.54
  5. Step 5: Solve for x
    x = 10,730,693,047.54/143,322.54
  6. Step 6: Final answer
    x = 74,870.94

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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.