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Finding the Fourth Proportional to 177,368.64, 265,821.93 and 72,064.50

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Solution

The fourth proportional to 177,368.64, 265,821.93 and 72,064.50 is: 108,002.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,368.64 : 265,821.93 = 72,064.50 : x
  2. Step 2: Convert to fraction form
    177,368.64/265,821.93 = 72,064.50/x
  3. Step 3: Cross multiply
    177,368.64x = 265,821.93 × 72,064.50
  4. Step 4: Simplify right side
    177,368.64x = 19,156,324,474.49
  5. Step 5: Solve for x
    x = 19,156,324,474.49/177,368.64
  6. Step 6: Final answer
    x = 108,002.88

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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.