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Finding the Fourth Proportional to 98,892.60, 136,472.04 and 53,570.76

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Solution

The fourth proportional to 98,892.60, 136,472.04 and 53,570.76 is: 73,927.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,892.60 : 136,472.04 = 53,570.76 : x
  2. Step 2: Convert to fraction form
    98,892.60/136,472.04 = 53,570.76/x
  3. Step 3: Cross multiply
    98,892.60x = 136,472.04 × 53,570.76
  4. Step 4: Simplify right side
    98,892.60x = 7,310,910,901.55
  5. Step 5: Solve for x
    x = 7,310,910,901.55/98,892.60
  6. Step 6: Final answer
    x = 73,927.79

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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.