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Finding the Fourth Proportional to 69,457.80, 104,264.46 and 46,129.80

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Solution

The fourth proportional to 69,457.80, 104,264.46 and 46,129.80 is: 69,246.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,457.80 : 104,264.46 = 46,129.80 : x
  2. Step 2: Convert to fraction form
    69,457.80/104,264.46 = 46,129.80/x
  3. Step 3: Cross multiply
    69,457.80x = 104,264.46 × 46,129.80
  4. Step 4: Simplify right side
    69,457.80x = 4,809,698,686.91
  5. Step 5: Solve for x
    x = 4,809,698,686.91/69,457.80
  6. Step 6: Final answer
    x = 69,246.34

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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.