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Finding the Fourth Proportional to 155,246.71, 232,675.21 and 66,395.74

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Solution

The fourth proportional to 155,246.71, 232,675.21 and 66,395.74 is: 99,510.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,246.71 : 232,675.21 = 66,395.74 : x
  2. Step 2: Convert to fraction form
    155,246.71/232,675.21 = 66,395.74/x
  3. Step 3: Cross multiply
    155,246.71x = 232,675.21 × 66,395.74
  4. Step 4: Simplify right side
    155,246.71x = 15,448,642,747.61
  5. Step 5: Solve for x
    x = 15,448,642,747.61/155,246.71
  6. Step 6: Final answer
    x = 99,510.27

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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.