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Finding the Fourth Proportional to 118,812.29, 163,960.93 and 65,099.35

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Solution

The fourth proportional to 118,812.29, 163,960.93 and 65,099.35 is: 89,837.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,812.29 : 163,960.93 = 65,099.35 : x
  2. Step 2: Convert to fraction form
    118,812.29/163,960.93 = 65,099.35/x
  3. Step 3: Cross multiply
    118,812.29x = 163,960.93 × 65,099.35
  4. Step 4: Simplify right side
    118,812.29x = 10,673,749,639.87
  5. Step 5: Solve for x
    x = 10,673,749,639.87/118,812.29
  6. Step 6: Final answer
    x = 89,837.08

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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.