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Finding the Fourth Proportional to 289,064.80, 433,597.20 and 102,095.20

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Solution

The fourth proportional to 289,064.80, 433,597.20 and 102,095.20 is: 153,142.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,064.80 : 433,597.20 = 102,095.20 : x
  2. Step 2: Convert to fraction form
    289,064.80/433,597.20 = 102,095.20/x
  3. Step 3: Cross multiply
    289,064.80x = 433,597.20 × 102,095.20
  4. Step 4: Simplify right side
    289,064.80x = 44,268,192,853.44
  5. Step 5: Solve for x
    x = 44,268,192,853.44/289,064.80
  6. Step 6: Final answer
    x = 153,142.80

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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.