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Finding the Fourth Proportional to 366,971.40, 550,457.10 and 117,678.60

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Solution

The fourth proportional to 366,971.40, 550,457.10 and 117,678.60 is: 176,517.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,971.40 : 550,457.10 = 117,678.60 : x
  2. Step 2: Convert to fraction form
    366,971.40/550,457.10 = 117,678.60/x
  3. Step 3: Cross multiply
    366,971.40x = 550,457.10 × 117,678.60
  4. Step 4: Simplify right side
    366,971.40x = 64,777,020,888.06
  5. Step 5: Solve for x
    x = 64,777,020,888.06/366,971.40
  6. Step 6: Final answer
    x = 176,517.90

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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.