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Finding the Fourth Proportional to 101,641.47, 140,261.43 and 58,622.76

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Solution

The fourth proportional to 101,641.47, 140,261.43 and 58,622.76 is: 80,897.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,641.47 : 140,261.43 = 58,622.76 : x
  2. Step 2: Convert to fraction form
    101,641.47/140,261.43 = 58,622.76/x
  3. Step 3: Cross multiply
    101,641.47x = 140,261.43 × 58,622.76
  4. Step 4: Simplify right side
    101,641.47x = 8,222,512,148.15
  5. Step 5: Solve for x
    x = 8,222,512,148.15/101,641.47
  6. Step 6: Final answer
    x = 80,897.22

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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.