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Finding the Fourth Proportional to 110,101.92, 152,003.60 and 72,485.52

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Solution

The fourth proportional to 110,101.92, 152,003.60 and 72,485.52 is: 100,071.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,101.92 : 152,003.60 = 72,485.52 : x
  2. Step 2: Convert to fraction form
    110,101.92/152,003.60 = 72,485.52/x
  3. Step 3: Cross multiply
    110,101.92x = 152,003.60 × 72,485.52
  4. Step 4: Simplify right side
    110,101.92x = 11,018,059,987.87
  5. Step 5: Solve for x
    x = 11,018,059,987.87/110,101.92
  6. Step 6: Final answer
    x = 100,071.46

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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.