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Finding the Fourth Proportional to 101,174.60, 139,620.14 and 55,852.58

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Solution

The fourth proportional to 101,174.60, 139,620.14 and 55,852.58 is: 77,076.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,174.60 : 139,620.14 = 55,852.58 : x
  2. Step 2: Convert to fraction form
    101,174.60/139,620.14 = 55,852.58/x
  3. Step 3: Cross multiply
    101,174.60x = 139,620.14 × 55,852.58
  4. Step 4: Simplify right side
    101,174.60x = 7,798,145,038.96
  5. Step 5: Solve for x
    x = 7,798,145,038.96/101,174.60
  6. Step 6: Final answer
    x = 77,076.11

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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.