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Finding the Fourth Proportional to 89,197.71, 133,784.28 and 49,290.45

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Solution

The fourth proportional to 89,197.71, 133,784.28 and 49,290.45 is: 73,928.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,197.71 : 133,784.28 = 49,290.45 : x
  2. Step 2: Convert to fraction form
    89,197.71/133,784.28 = 49,290.45/x
  3. Step 3: Cross multiply
    89,197.71x = 133,784.28 × 49,290.45
  4. Step 4: Simplify right side
    89,197.71x = 6,594,287,364.13
  5. Step 5: Solve for x
    x = 6,594,287,364.13/89,197.71
  6. Step 6: Final answer
    x = 73,928.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.