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Finding the Fourth Proportional to 202,307.55, 279,164.52 and 111,657.69

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Solution

The fourth proportional to 202,307.55, 279,164.52 and 111,657.69 is: 154,076.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,307.55 : 279,164.52 = 111,657.69 : x
  2. Step 2: Convert to fraction form
    202,307.55/279,164.52 = 111,657.69/x
  3. Step 3: Cross multiply
    202,307.55x = 279,164.52 × 111,657.69
  4. Step 4: Simplify right side
    202,307.55x = 31,170,865,433.16
  5. Step 5: Solve for x
    x = 31,170,865,433.16/202,307.55
  6. Step 6: Final answer
    x = 154,076.63

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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.