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Finding the Fourth Proportional to 118,521.34, 163,559.60 and 64,806.60

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Solution

The fourth proportional to 118,521.34, 163,559.60 and 64,806.60 is: 89,433.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,521.34 : 163,559.60 = 64,806.60 : x
  2. Step 2: Convert to fraction form
    118,521.34/163,559.60 = 64,806.60/x
  3. Step 3: Cross multiply
    118,521.34x = 163,559.60 × 64,806.60
  4. Step 4: Simplify right side
    118,521.34x = 10,599,741,573.36
  5. Step 5: Solve for x
    x = 10,599,741,573.36/118,521.34
  6. Step 6: Final answer
    x = 89,433.19

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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.