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Finding the Fourth Proportional to 144,798.80, 217,039.80 and 51,256.40

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Solution

The fourth proportional to 144,798.80, 217,039.80 and 51,256.40 is: 76,828.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,798.80 : 217,039.80 = 51,256.40 : x
  2. Step 2: Convert to fraction form
    144,798.80/217,039.80 = 51,256.40/x
  3. Step 3: Cross multiply
    144,798.80x = 217,039.80 × 51,256.40
  4. Step 4: Simplify right side
    144,798.80x = 11,124,678,804.72
  5. Step 5: Solve for x
    x = 11,124,678,804.72/144,798.80
  6. Step 6: Final answer
    x = 76,828.53

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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.