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Finding the Fourth Proportional to 76,548.90, 105,640.02 and 46,339.68

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Solution

The fourth proportional to 76,548.90, 105,640.02 and 46,339.68 is: 63,950.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,548.90 : 105,640.02 = 46,339.68 : x
  2. Step 2: Convert to fraction form
    76,548.90/105,640.02 = 46,339.68/x
  3. Step 3: Cross multiply
    76,548.90x = 105,640.02 × 46,339.68
  4. Step 4: Simplify right side
    76,548.90x = 4,895,324,721.99
  5. Step 5: Solve for x
    x = 4,895,324,721.99/76,548.90
  6. Step 6: Final answer
    x = 63,950.29

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1.5x scale

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.