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Finding the Fourth Proportional to 86,597.94, 129,964.86 and 44,476.32

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Solution

The fourth proportional to 86,597.94, 129,964.86 and 44,476.32 is: 66,749.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,597.94 : 129,964.86 = 44,476.32 : x
  2. Step 2: Convert to fraction form
    86,597.94/129,964.86 = 44,476.32/x
  3. Step 3: Cross multiply
    86,597.94x = 129,964.86 × 44,476.32
  4. Step 4: Simplify right side
    86,597.94x = 5,780,358,702.12
  5. Step 5: Solve for x
    x = 5,780,358,702.12/86,597.94
  6. Step 6: Final answer
    x = 66,749.38

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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.