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Finding the Fourth Proportional to 116,277.50, 160,480.51 and 70,981.85

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Solution

The fourth proportional to 116,277.50, 160,480.51 and 70,981.85 is: 97,965.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,277.50 : 160,480.51 = 70,981.85 : x
  2. Step 2: Convert to fraction form
    116,277.50/160,480.51 = 70,981.85/x
  3. Step 3: Cross multiply
    116,277.50x = 160,480.51 × 70,981.85
  4. Step 4: Simplify right side
    116,277.50x = 11,391,203,712.49
  5. Step 5: Solve for x
    x = 11,391,203,712.49/116,277.50
  6. Step 6: Final answer
    x = 97,965.67

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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.