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Finding the Fourth Proportional to 116,503.50, 160,828.98 and 87,834.76

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Solution

The fourth proportional to 116,503.50, 160,828.98 and 87,834.76 is: 121,252.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,503.50 : 160,828.98 = 87,834.76 : x
  2. Step 2: Convert to fraction form
    116,503.50/160,828.98 = 87,834.76/x
  3. Step 3: Cross multiply
    116,503.50x = 160,828.98 × 87,834.76
  4. Step 4: Simplify right side
    116,503.50x = 14,126,374,859.34
  5. Step 5: Solve for x
    x = 14,126,374,859.34/116,503.50
  6. Step 6: Final answer
    x = 121,252.79

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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.