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Finding the Fourth Proportional to 98,651.52, 136,138.90 and 53,329.53

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Solution

The fourth proportional to 98,651.52, 136,138.90 and 53,329.53 is: 73,594.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,651.52 : 136,138.90 = 53,329.53 : x
  2. Step 2: Convert to fraction form
    98,651.52/136,138.90 = 53,329.53/x
  3. Step 3: Cross multiply
    98,651.52x = 136,138.90 × 53,329.53
  4. Step 4: Simplify right side
    98,651.52x = 7,260,223,551.72
  5. Step 5: Solve for x
    x = 7,260,223,551.72/98,651.52
  6. Step 6: Final answer
    x = 73,594.64

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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.