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Finding the Fourth Proportional to 368,790.86, 552,903.79 and 115,925.06

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Solution

The fourth proportional to 368,790.86, 552,903.79 and 115,925.06 is: 173,798.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,790.86 : 552,903.79 = 115,925.06 : x
  2. Step 2: Convert to fraction form
    368,790.86/552,903.79 = 115,925.06/x
  3. Step 3: Cross multiply
    368,790.86x = 552,903.79 × 115,925.06
  4. Step 4: Simplify right side
    368,790.86x = 64,095,405,029.98
  5. Step 5: Solve for x
    x = 64,095,405,029.98/368,790.86
  6. Step 6: Final answer
    x = 173,798.79

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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.