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Finding the Fourth Proportional to 101,648.60, 140,273.21 and 56,325.59

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Solution

The fourth proportional to 101,648.60, 140,273.21 and 56,325.59 is: 77,728.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,648.60 : 140,273.21 = 56,325.59 : x
  2. Step 2: Convert to fraction form
    101,648.60/140,273.21 = 56,325.59/x
  3. Step 3: Cross multiply
    101,648.60x = 140,273.21 × 56,325.59
  4. Step 4: Simplify right side
    101,648.60x = 7,900,971,032.82
  5. Step 5: Solve for x
    x = 7,900,971,032.82/101,648.60
  6. Step 6: Final answer
    x = 77,728.28

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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.