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Finding the Fourth Proportional to 155,497.70, 233,246.55 and 66,736.10

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Solution

The fourth proportional to 155,497.70, 233,246.55 and 66,736.10 is: 100,104.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,497.70 : 233,246.55 = 66,736.10 : x
  2. Step 2: Convert to fraction form
    155,497.70/233,246.55 = 66,736.10/x
  3. Step 3: Cross multiply
    155,497.70x = 233,246.55 × 66,736.10
  4. Step 4: Simplify right side
    155,497.70x = 15,565,965,085.46
  5. Step 5: Solve for x
    x = 15,565,965,085.46/155,497.70
  6. Step 6: Final answer
    x = 100,104.15

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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.