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Finding the Fourth Proportional to 98,366.49, 147,550.59 and 28,245.78

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Solution

The fourth proportional to 98,366.49, 147,550.59 and 28,245.78 is: 42,368.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,366.49 : 147,550.59 = 28,245.78 : x
  2. Step 2: Convert to fraction form
    98,366.49/147,550.59 = 28,245.78/x
  3. Step 3: Cross multiply
    98,366.49x = 147,550.59 × 28,245.78
  4. Step 4: Simplify right side
    98,366.49x = 4,167,681,504.01
  5. Step 5: Solve for x
    x = 4,167,681,504.01/98,366.49
  6. Step 6: Final answer
    x = 42,368.92

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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.