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Finding the Fourth Proportional to 104,798.48, 144,621.90 and 57,051.81

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Solution

The fourth proportional to 104,798.48, 144,621.90 and 57,051.81 is: 78,731.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,798.48 : 144,621.90 = 57,051.81 : x
  2. Step 2: Convert to fraction form
    104,798.48/144,621.90 = 57,051.81/x
  3. Step 3: Cross multiply
    104,798.48x = 144,621.90 × 57,051.81
  4. Step 4: Simplify right side
    104,798.48x = 8,250,941,160.64
  5. Step 5: Solve for x
    x = 8,250,941,160.64/104,798.48
  6. Step 6: Final answer
    x = 78,731.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.