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Finding the Fourth Proportional to 142,992.44, 214,506.54 and 43,152.47

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Solution

The fourth proportional to 142,992.44, 214,506.54 and 43,152.47 is: 64,734.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,992.44 : 214,506.54 = 43,152.47 : x
  2. Step 2: Convert to fraction form
    142,992.44/214,506.54 = 43,152.47/x
  3. Step 3: Cross multiply
    142,992.44x = 214,506.54 × 43,152.47
  4. Step 4: Simplify right side
    142,992.44x = 9,256,487,032.15
  5. Step 5: Solve for x
    x = 9,256,487,032.15/142,992.44
  6. Step 6: Final answer
    x = 64,734.10

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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.