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Finding the Fourth Proportional to 98,774.59, 136,308.93 and 53,452.57

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Solution

The fourth proportional to 98,774.59, 136,308.93 and 53,452.57 is: 73,764.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,774.59 : 136,308.93 = 53,452.57 : x
  2. Step 2: Convert to fraction form
    98,774.59/136,308.93 = 53,452.57/x
  3. Step 3: Cross multiply
    98,774.59x = 136,308.93 × 53,452.57
  4. Step 4: Simplify right side
    98,774.59x = 7,286,062,281.68
  5. Step 5: Solve for x
    x = 7,286,062,281.68/98,774.59
  6. Step 6: Final answer
    x = 73,764.54

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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.