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Finding the Fourth Proportional to 118,565.44, 163,623.54 and 64,853.62

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Solution

The fourth proportional to 118,565.44, 163,623.54 and 64,853.62 is: 89,499.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,565.44 : 163,623.54 = 64,853.62 : x
  2. Step 2: Convert to fraction form
    118,565.44/163,623.54 = 64,853.62/x
  3. Step 3: Cross multiply
    118,565.44x = 163,623.54 × 64,853.62
  4. Step 4: Simplify right side
    118,565.44x = 10,611,578,886.21
  5. Step 5: Solve for x
    x = 10,611,578,886.21/118,565.44
  6. Step 6: Final answer
    x = 89,499.76

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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.