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Finding the Fourth Proportional to 116,186.80, 173,842.80 and 76,820.80

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Solution

The fourth proportional to 116,186.80, 173,842.80 and 76,820.80 is: 114,942.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,186.80 : 173,842.80 = 76,820.80 : x
  2. Step 2: Convert to fraction form
    116,186.80/173,842.80 = 76,820.80/x
  3. Step 3: Cross multiply
    116,186.80x = 173,842.80 × 76,820.80
  4. Step 4: Simplify right side
    116,186.80x = 13,354,742,970.24
  5. Step 5: Solve for x
    x = 13,354,742,970.24/116,186.80
  6. Step 6: Final answer
    x = 114,942.00

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1.5x scale

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.