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Finding the Fourth Proportional to 107,401.70, 160,944.15 and 77,881.70

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Solution

The fourth proportional to 107,401.70, 160,944.15 and 77,881.70 is: 116,707.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,401.70 : 160,944.15 = 77,881.70 : x
  2. Step 2: Convert to fraction form
    107,401.70/160,944.15 = 77,881.70/x
  3. Step 3: Cross multiply
    107,401.70x = 160,944.15 × 77,881.70
  4. Step 4: Simplify right side
    107,401.70x = 12,534,604,007.06
  5. Step 5: Solve for x
    x = 12,534,604,007.06/107,401.70
  6. Step 6: Final answer
    x = 116,707.69

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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.