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Finding the Fourth Proportional to 98,597.92, 136,065.12 and 53,885.92

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Solution

The fourth proportional to 98,597.92, 136,065.12 and 53,885.92 is: 74,362.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,597.92 : 136,065.12 = 53,885.92 : x
  2. Step 2: Convert to fraction form
    98,597.92/136,065.12 = 53,885.92/x
  3. Step 3: Cross multiply
    98,597.92x = 136,065.12 × 53,885.92
  4. Step 4: Simplify right side
    98,597.92x = 7,331,994,171.11
  5. Step 5: Solve for x
    x = 7,331,994,171.11/98,597.92
  6. Step 6: Final answer
    x = 74,362.56

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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.