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Finding the Fourth Proportional to 98,828.70, 136,383.41 and 53,506.67

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Solution

The fourth proportional to 98,828.70, 136,383.41 and 53,506.67 is: 73,839.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,828.70 : 136,383.41 = 53,506.67 : x
  2. Step 2: Convert to fraction form
    98,828.70/136,383.41 = 53,506.67/x
  3. Step 3: Cross multiply
    98,828.70x = 136,383.41 × 53,506.67
  4. Step 4: Simplify right side
    98,828.70x = 7,297,422,319.54
  5. Step 5: Solve for x
    x = 7,297,422,319.54/98,828.70
  6. Step 6: Final answer
    x = 73,839.10

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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.