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Finding the Fourth Proportional to 118,675.87, 163,772.69 and 64,960.92

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Solution

The fourth proportional to 118,675.87, 163,772.69 and 64,960.92 is: 89,646.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,675.87 : 163,772.69 = 64,960.92 : x
  2. Step 2: Convert to fraction form
    118,675.87/163,772.69 = 64,960.92/x
  3. Step 3: Cross multiply
    118,675.87x = 163,772.69 × 64,960.92
  4. Step 4: Simplify right side
    118,675.87x = 10,638,824,288.47
  5. Step 5: Solve for x
    x = 10,638,824,288.47/118,675.87
  6. Step 6: Final answer
    x = 89,646.06

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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.