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Finding the Fourth Proportional to 245,841.86, 368,937.76 and 189,738.02

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Solution

The fourth proportional to 245,841.86, 368,937.76 and 189,738.02 is: 284,742.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,841.86 : 368,937.76 = 189,738.02 : x
  2. Step 2: Convert to fraction form
    245,841.86/368,937.76 = 189,738.02/x
  3. Step 3: Cross multiply
    245,841.86x = 368,937.76 × 189,738.02
  4. Step 4: Simplify right side
    245,841.86x = 70,001,520,085.64
  5. Step 5: Solve for x
    x = 70,001,520,085.64/245,841.86
  6. Step 6: Final answer
    x = 284,742.07

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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.