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Finding the Fourth Proportional to 98,239.50, 135,571.59 and 53,527.50

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Solution

The fourth proportional to 98,239.50, 135,571.59 and 53,527.50 is: 73,868.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,239.50 : 135,571.59 = 53,527.50 : x
  2. Step 2: Convert to fraction form
    98,239.50/135,571.59 = 53,527.50/x
  3. Step 3: Cross multiply
    98,239.50x = 135,571.59 × 53,527.50
  4. Step 4: Simplify right side
    98,239.50x = 7,256,808,283.73
  5. Step 5: Solve for x
    x = 7,256,808,283.73/98,239.50
  6. Step 6: Final answer
    x = 73,868.54

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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.