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Finding the Fourth Proportional to 98,672.58, 136,166.12 and 53,960.58

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Solution

The fourth proportional to 98,672.58, 136,166.12 and 53,960.58 is: 74,464.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,672.58 : 136,166.12 = 53,960.58 : x
  2. Step 2: Convert to fraction form
    98,672.58/136,166.12 = 53,960.58/x
  3. Step 3: Cross multiply
    98,672.58x = 136,166.12 × 53,960.58
  4. Step 4: Simplify right side
    98,672.58x = 7,347,602,811.55
  5. Step 5: Solve for x
    x = 7,347,602,811.55/98,672.58
  6. Step 6: Final answer
    x = 74,464.48

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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.