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Finding the Fourth Proportional to 111,502.40, 167,253.60 and 102,516.80

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Solution

The fourth proportional to 111,502.40, 167,253.60 and 102,516.80 is: 153,775.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,502.40 : 167,253.60 = 102,516.80 : x
  2. Step 2: Convert to fraction form
    111,502.40/167,253.60 = 102,516.80/x
  3. Step 3: Cross multiply
    111,502.40x = 167,253.60 × 102,516.80
  4. Step 4: Simplify right side
    111,502.40x = 17,146,303,860.48
  5. Step 5: Solve for x
    x = 17,146,303,860.48/111,502.40
  6. Step 6: Final answer
    x = 153,775.20

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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.