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Finding the Fourth Proportional to 79,775.12, 110,101.80 and 60,623.67

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Solution

The fourth proportional to 79,775.12, 110,101.80 and 60,623.67 is: 83,669.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,775.12 : 110,101.80 = 60,623.67 : x
  2. Step 2: Convert to fraction form
    79,775.12/110,101.80 = 60,623.67/x
  3. Step 3: Cross multiply
    79,775.12x = 110,101.80 × 60,623.67
  4. Step 4: Simplify right side
    79,775.12x = 6,674,775,189.61
  5. Step 5: Solve for x
    x = 6,674,775,189.61/79,775.12
  6. Step 6: Final answer
    x = 83,669.89

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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.