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Finding the Fourth Proportional to 85,901.00, 128,727.14 and 59,219.60

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Solution

The fourth proportional to 85,901.00, 128,727.14 and 59,219.60 is: 88,743.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,901.00 : 128,727.14 = 59,219.60 : x
  2. Step 2: Convert to fraction form
    85,901.00/128,727.14 = 59,219.60/x
  3. Step 3: Cross multiply
    85,901.00x = 128,727.14 × 59,219.60
  4. Step 4: Simplify right side
    85,901.00x = 7,623,168,800.21
  5. Step 5: Solve for x
    x = 7,623,168,800.21/85,901.00
  6. Step 6: Final answer
    x = 88,743.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.