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Finding the Fourth Proportional to 111,461.40, 167,192.10 and 73,407.60

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Solution

The fourth proportional to 111,461.40, 167,192.10 and 73,407.60 is: 110,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,461.40 : 167,192.10 = 73,407.60 : x
  2. Step 2: Convert to fraction form
    111,461.40/167,192.10 = 73,407.60/x
  3. Step 3: Cross multiply
    111,461.40x = 167,192.10 × 73,407.60
  4. Step 4: Simplify right side
    111,461.40x = 12,273,170,799.96
  5. Step 5: Solve for x
    x = 12,273,170,799.96/111,461.40
  6. Step 6: Final answer
    x = 110,111.40

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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.