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Finding the Fourth Proportional to 66,328.93, 91,504.35 and 44,811.76

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Solution

The fourth proportional to 66,328.93, 91,504.35 and 44,811.76 is: 61,820.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,328.93 : 91,504.35 = 44,811.76 : x
  2. Step 2: Convert to fraction form
    66,328.93/91,504.35 = 44,811.76/x
  3. Step 3: Cross multiply
    66,328.93x = 91,504.35 × 44,811.76
  4. Step 4: Simplify right side
    66,328.93x = 4,100,470,971.16
  5. Step 5: Solve for x
    x = 4,100,470,971.16/66,328.93
  6. Step 6: Final answer
    x = 61,820.25

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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.