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Finding the Fourth Proportional to 188,482.21, 260,106.32 and 103,604.74

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Solution

The fourth proportional to 188,482.21, 260,106.32 and 103,604.74 is: 142,975.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,482.21 : 260,106.32 = 103,604.74 : x
  2. Step 2: Convert to fraction form
    188,482.21/260,106.32 = 103,604.74/x
  3. Step 3: Cross multiply
    188,482.21x = 260,106.32 × 103,604.74
  4. Step 4: Simplify right side
    188,482.21x = 26,948,247,264.70
  5. Step 5: Solve for x
    x = 26,948,247,264.70/188,482.21
  6. Step 6: Final answer
    x = 142,975.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.