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Finding the Fourth Proportional to 98,774.34, 136,308.72 and 53,452.41

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Solution

The fourth proportional to 98,774.34, 136,308.72 and 53,452.41 is: 73,764.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,774.34 : 136,308.72 = 53,452.41 : x
  2. Step 2: Convert to fraction form
    98,774.34/136,308.72 = 53,452.41/x
  3. Step 3: Cross multiply
    98,774.34x = 136,308.72 × 53,452.41
  4. Step 4: Simplify right side
    98,774.34x = 7,286,029,277.30
  5. Step 5: Solve for x
    x = 7,286,029,277.30/98,774.34
  6. Step 6: Final answer
    x = 73,764.40

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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.