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Finding the Fourth Proportional to 98,551.45, 136,000.98 and 53,229.40

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Solution

The fourth proportional to 98,551.45, 136,000.98 and 53,229.40 is: 73,456.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,551.45 : 136,000.98 = 53,229.40 : x
  2. Step 2: Convert to fraction form
    98,551.45/136,000.98 = 53,229.40/x
  3. Step 3: Cross multiply
    98,551.45x = 136,000.98 × 53,229.40
  4. Step 4: Simplify right side
    98,551.45x = 7,239,250,564.81
  5. Step 5: Solve for x
    x = 7,239,250,564.81/98,551.45
  6. Step 6: Final answer
    x = 73,456.56

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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.