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Finding the Fourth Proportional to 111,461.48, 167,239.12 and 69,376.77

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Solution

The fourth proportional to 111,461.48, 167,239.12 and 69,376.77 is: 104,094.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,461.48 : 167,239.12 = 69,376.77 : x
  2. Step 2: Convert to fraction form
    111,461.48/167,239.12 = 69,376.77/x
  3. Step 3: Cross multiply
    111,461.48x = 167,239.12 × 69,376.77
  4. Step 4: Simplify right side
    111,461.48x = 11,602,509,789.80
  5. Step 5: Solve for x
    x = 11,602,509,789.80/111,461.48
  6. Step 6: Final answer
    x = 104,094.35

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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.