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Finding the Fourth Proportional to 163,920.20, 245,880.30 and 114,056.60

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Solution

The fourth proportional to 163,920.20, 245,880.30 and 114,056.60 is: 171,084.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,920.20 : 245,880.30 = 114,056.60 : x
  2. Step 2: Convert to fraction form
    163,920.20/245,880.30 = 114,056.60/x
  3. Step 3: Cross multiply
    163,920.20x = 245,880.30 × 114,056.60
  4. Step 4: Simplify right side
    163,920.20x = 28,044,271,024.98
  5. Step 5: Solve for x
    x = 28,044,271,024.98/163,920.20
  6. Step 6: Final answer
    x = 171,084.90

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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.