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Finding the Fourth Proportional to 77,609.91, 116,378.01 and 35,477.49

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Solution

The fourth proportional to 77,609.91, 116,378.01 and 35,477.49 is: 53,199.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,609.91 : 116,378.01 = 35,477.49 : x
  2. Step 2: Convert to fraction form
    77,609.91/116,378.01 = 35,477.49/x
  3. Step 3: Cross multiply
    77,609.91x = 116,378.01 × 35,477.49
  4. Step 4: Simplify right side
    77,609.91x = 4,128,799,685.99
  5. Step 5: Solve for x
    x = 4,128,799,685.99/77,609.91
  6. Step 6: Final answer
    x = 53,199.39

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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.