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Finding the Fourth Proportional to 118,800.14, 163,944.20 and 65,085.29

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Solution

The fourth proportional to 118,800.14, 163,944.20 and 65,085.29 is: 89,817.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,800.14 : 163,944.20 = 65,085.29 : x
  2. Step 2: Convert to fraction form
    118,800.14/163,944.20 = 65,085.29/x
  3. Step 3: Cross multiply
    118,800.14x = 163,944.20 × 65,085.29
  4. Step 4: Simplify right side
    118,800.14x = 10,670,354,655.67
  5. Step 5: Solve for x
    x = 10,670,354,655.67/118,800.14
  6. Step 6: Final answer
    x = 89,817.70

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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.