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Finding the Fourth Proportional to 68,503.86, 94,359.51 and 48,325.32

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Solution

The fourth proportional to 68,503.86, 94,359.51 and 48,325.32 is: 66,564.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,503.86 : 94,359.51 = 48,325.32 : x
  2. Step 2: Convert to fraction form
    68,503.86/94,359.51 = 48,325.32/x
  3. Step 3: Cross multiply
    68,503.86x = 94,359.51 × 48,325.32
  4. Step 4: Simplify right side
    68,503.86x = 4,559,953,515.79
  5. Step 5: Solve for x
    x = 4,559,953,515.79/68,503.86
  6. Step 6: Final answer
    x = 66,564.91

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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.