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Finding the Fourth Proportional to 224,515.80, 336,700.80 and 74,730.60

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Solution

The fourth proportional to 224,515.80, 336,700.80 and 74,730.60 is: 112,071.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,515.80 : 336,700.80 = 74,730.60 : x
  2. Step 2: Convert to fraction form
    224,515.80/336,700.80 = 74,730.60/x
  3. Step 3: Cross multiply
    224,515.80x = 336,700.80 × 74,730.60
  4. Step 4: Simplify right side
    224,515.80x = 25,161,852,804.48
  5. Step 5: Solve for x
    x = 25,161,852,804.48/224,515.80
  6. Step 6: Final answer
    x = 112,071.64

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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.