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Finding the Fourth Proportional to 163,818.30, 245,836.80 and 92,740.80

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Solution

The fourth proportional to 163,818.30, 245,836.80 and 92,740.80 is: 139,173.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,818.30 : 245,836.80 = 92,740.80 : x
  2. Step 2: Convert to fraction form
    163,818.30/245,836.80 = 92,740.80/x
  3. Step 3: Cross multiply
    163,818.30x = 245,836.80 × 92,740.80
  4. Step 4: Simplify right side
    163,818.30x = 22,799,101,501.44
  5. Step 5: Solve for x
    x = 22,799,101,501.44/163,818.30
  6. Step 6: Final answer
    x = 139,173.11

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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.