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Finding the Fourth Proportional to 79,294.98, 109,416.99 and 45,305.67

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Solution

The fourth proportional to 79,294.98, 109,416.99 and 45,305.67 is: 62,516.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,294.98 : 109,416.99 = 45,305.67 : x
  2. Step 2: Convert to fraction form
    79,294.98/109,416.99 = 45,305.67/x
  3. Step 3: Cross multiply
    79,294.98x = 109,416.99 × 45,305.67
  4. Step 4: Simplify right side
    79,294.98x = 4,957,209,565.51
  5. Step 5: Solve for x
    x = 4,957,209,565.51/79,294.98
  6. Step 6: Final answer
    x = 62,516.06

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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.