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Finding the Fourth Proportional to 245,034.72, 366,764.40 and 126,544.32

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Solution

The fourth proportional to 245,034.72, 366,764.40 and 126,544.32 is: 189,409.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,034.72 : 366,764.40 = 126,544.32 : x
  2. Step 2: Convert to fraction form
    245,034.72/366,764.40 = 126,544.32/x
  3. Step 3: Cross multiply
    245,034.72x = 366,764.40 × 126,544.32
  4. Step 4: Simplify right side
    245,034.72x = 46,411,951,598.21
  5. Step 5: Solve for x
    x = 46,411,951,598.21/245,034.72
  6. Step 6: Final answer
    x = 189,409.70

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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.