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Finding the Fourth Proportional to 78,080.58, 116,932.05 and 44,699.40

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Solution

The fourth proportional to 78,080.58, 116,932.05 and 44,699.40 is: 66,941.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,080.58 : 116,932.05 = 44,699.40 : x
  2. Step 2: Convert to fraction form
    78,080.58/116,932.05 = 44,699.40/x
  3. Step 3: Cross multiply
    78,080.58x = 116,932.05 × 44,699.40
  4. Step 4: Simplify right side
    78,080.58x = 5,226,792,475.77
  5. Step 5: Solve for x
    x = 5,226,792,475.77/78,080.58
  6. Step 6: Final answer
    x = 66,941.00

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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.