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Finding the Fourth Proportional to 370,722.60, 556,343.10 and 160,511.40

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Solution

The fourth proportional to 370,722.60, 556,343.10 and 160,511.40 is: 240,879.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,722.60 : 556,343.10 = 160,511.40 : x
  2. Step 2: Convert to fraction form
    370,722.60/556,343.10 = 160,511.40/x
  3. Step 3: Cross multiply
    370,722.60x = 556,343.10 × 160,511.40
  4. Step 4: Simplify right side
    370,722.60x = 89,299,409,861.34
  5. Step 5: Solve for x
    x = 89,299,409,861.34/370,722.60
  6. Step 6: Final answer
    x = 240,879.33

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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.