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Finding the Fourth Proportional to 111,810.50, 167,292.53 and 66,242.67

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Solution

The fourth proportional to 111,810.50, 167,292.53 and 66,242.67 is: 99,113.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,810.50 : 167,292.53 = 66,242.67 : x
  2. Step 2: Convert to fraction form
    111,810.50/167,292.53 = 66,242.67/x
  3. Step 3: Cross multiply
    111,810.50x = 167,292.53 × 66,242.67
  4. Step 4: Simplify right side
    111,810.50x = 11,081,903,858.26
  5. Step 5: Solve for x
    x = 11,081,903,858.26/111,810.50
  6. Step 6: Final answer
    x = 99,113.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.