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Finding the Fourth Proportional to 147,392.86, 203,407.59 and 83,741.44

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Solution

The fourth proportional to 147,392.86, 203,407.59 and 83,741.44 is: 115,566.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,392.86 : 203,407.59 = 83,741.44 : x
  2. Step 2: Convert to fraction form
    147,392.86/203,407.59 = 83,741.44/x
  3. Step 3: Cross multiply
    147,392.86x = 203,407.59 × 83,741.44
  4. Step 4: Simplify right side
    147,392.86x = 17,033,644,493.53
  5. Step 5: Solve for x
    x = 17,033,644,493.53/147,392.86
  6. Step 6: Final answer
    x = 115,566.28

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1.5x scale

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.