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Finding the Fourth Proportional to 98,610.76, 136,082.84 and 53,898.76

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Solution

The fourth proportional to 98,610.76, 136,082.84 and 53,898.76 is: 74,380.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,610.76 : 136,082.84 = 53,898.76 : x
  2. Step 2: Convert to fraction form
    98,610.76/136,082.84 = 53,898.76/x
  3. Step 3: Cross multiply
    98,610.76x = 136,082.84 × 53,898.76
  4. Step 4: Simplify right side
    98,610.76x = 7,334,696,333.28
  5. Step 5: Solve for x
    x = 7,334,696,333.28/98,610.76
  6. Step 6: Final answer
    x = 74,380.28

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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.