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Finding the Fourth Proportional to 48,417.92, 72,403.92 and 46,055.96

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Solution

The fourth proportional to 48,417.92, 72,403.92 and 46,055.96 is: 68,871.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,417.92 : 72,403.92 = 46,055.96 : x
  2. Step 2: Convert to fraction form
    48,417.92/72,403.92 = 46,055.96/x
  3. Step 3: Cross multiply
    48,417.92x = 72,403.92 × 46,055.96
  4. Step 4: Simplify right side
    48,417.92x = 3,334,631,862.35
  5. Step 5: Solve for x
    x = 3,334,631,862.35/48,417.92
  6. Step 6: Final answer
    x = 68,871.86

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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.