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Finding the Fourth Proportional to 104,078.01, 143,628.71 and 56,332.38

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Solution

The fourth proportional to 104,078.01, 143,628.71 and 56,332.38 is: 77,739.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,078.01 : 143,628.71 = 56,332.38 : x
  2. Step 2: Convert to fraction form
    104,078.01/143,628.71 = 56,332.38/x
  3. Step 3: Cross multiply
    104,078.01x = 143,628.71 × 56,332.38
  4. Step 4: Simplify right side
    104,078.01x = 8,090,947,070.63
  5. Step 5: Solve for x
    x = 8,090,947,070.63/104,078.01
  6. Step 6: Final answer
    x = 77,739.26

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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.