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Finding the Fourth Proportional to 86,066.88, 118,738.96 and 63,459.60

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Solution

The fourth proportional to 86,066.88, 118,738.96 and 63,459.60 is: 87,549.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,066.88 : 118,738.96 = 63,459.60 : x
  2. Step 2: Convert to fraction form
    86,066.88/118,738.96 = 63,459.60/x
  3. Step 3: Cross multiply
    86,066.88x = 118,738.96 × 63,459.60
  4. Step 4: Simplify right side
    86,066.88x = 7,535,126,906.02
  5. Step 5: Solve for x
    x = 7,535,126,906.02/86,066.88
  6. Step 6: Final answer
    x = 87,549.67

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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.