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Finding the Fourth Proportional to 155,479.40, 233,276.70 and 149,719.40

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Solution

The fourth proportional to 155,479.40, 233,276.70 and 149,719.40 is: 224,634.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,479.40 : 233,276.70 = 149,719.40 : x
  2. Step 2: Convert to fraction form
    155,479.40/233,276.70 = 149,719.40/x
  3. Step 3: Cross multiply
    155,479.40x = 233,276.70 × 149,719.40
  4. Step 4: Simplify right side
    155,479.40x = 34,926,047,557.98
  5. Step 5: Solve for x
    x = 34,926,047,557.98/155,479.40
  6. Step 6: Final answer
    x = 224,634.57

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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.