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Finding the Fourth Proportional to 104,109.70, 143,669.67 and 56,362.66

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Solution

The fourth proportional to 104,109.70, 143,669.67 and 56,362.66 is: 77,779.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,109.70 : 143,669.67 = 56,362.66 : x
  2. Step 2: Convert to fraction form
    104,109.70/143,669.67 = 56,362.66/x
  3. Step 3: Cross multiply
    104,109.70x = 143,669.67 × 56,362.66
  4. Step 4: Simplify right side
    104,109.70x = 8,097,604,762.52
  5. Step 5: Solve for x
    x = 8,097,604,762.52/104,109.70
  6. Step 6: Final answer
    x = 77,779.54

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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.