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Finding the Fourth Proportional to 295,628.40, 443,345.40 and 108,615.60

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Solution

The fourth proportional to 295,628.40, 443,345.40 and 108,615.60 is: 162,887.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,628.40 : 443,345.40 = 108,615.60 : x
  2. Step 2: Convert to fraction form
    295,628.40/443,345.40 = 108,615.60/x
  3. Step 3: Cross multiply
    295,628.40x = 443,345.40 × 108,615.60
  4. Step 4: Simplify right side
    295,628.40x = 48,154,226,628.24
  5. Step 5: Solve for x
    x = 48,154,226,628.24/295,628.40
  6. Step 6: Final answer
    x = 162,887.69

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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.