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Finding the Fourth Proportional to 118,618.52, 163,695.60 and 64,908.23

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Solution

The fourth proportional to 118,618.52, 163,695.60 and 64,908.23 is: 89,574.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,618.52 : 163,695.60 = 64,908.23 : x
  2. Step 2: Convert to fraction form
    118,618.52/163,695.60 = 64,908.23/x
  3. Step 3: Cross multiply
    118,618.52x = 163,695.60 × 64,908.23
  4. Step 4: Simplify right side
    118,618.52x = 10,625,190,836.31
  5. Step 5: Solve for x
    x = 10,625,190,836.31/118,618.52
  6. Step 6: Final answer
    x = 89,574.47

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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.