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Finding the Fourth Proportional to 98,287.50, 135,636.84 and 53,575.50

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Solution

The fourth proportional to 98,287.50, 135,636.84 and 53,575.50 is: 73,934.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,287.50 : 135,636.84 = 53,575.50 : x
  2. Step 2: Convert to fraction form
    98,287.50/135,636.84 = 53,575.50/x
  3. Step 3: Cross multiply
    98,287.50x = 135,636.84 × 53,575.50
  4. Step 4: Simplify right side
    98,287.50x = 7,266,811,521.42
  5. Step 5: Solve for x
    x = 7,266,811,521.42/98,287.50
  6. Step 6: Final answer
    x = 73,934.24

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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.