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Finding the Fourth Proportional to 118,641.62, 163,725.44 and 64,926.65

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Solution

The fourth proportional to 118,641.62, 163,725.44 and 64,926.65 is: 89,598.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,641.62 : 163,725.44 = 64,926.65 : x
  2. Step 2: Convert to fraction form
    118,641.62/163,725.44 = 64,926.65/x
  3. Step 3: Cross multiply
    118,641.62x = 163,725.44 × 64,926.65
  4. Step 4: Simplify right side
    118,641.62x = 10,630,143,195.72
  5. Step 5: Solve for x
    x = 10,630,143,195.72/118,641.62
  6. Step 6: Final answer
    x = 89,598.77

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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.