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Finding the Fourth Proportional to 237,990, 357,093.90 and 103,095.30

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Solution

The fourth proportional to 237,990, 357,093.90 and 103,095.30 is: 154,690.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,990 : 357,093.90 = 103,095.30 : x
  2. Step 2: Convert to fraction form
    237,990/357,093.90 = 103,095.30/x
  3. Step 3: Cross multiply
    237,990x = 357,093.90 × 103,095.30
  4. Step 4: Simplify right side
    237,990x = 36,814,702,748.67
  5. Step 5: Solve for x
    x = 36,814,702,748.67/237,990
  6. Step 6: Final answer
    x = 154,690.12

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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.