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Finding the Fourth Proportional to 235,483.40, 353,225.10 and 85,892.60

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Solution

The fourth proportional to 235,483.40, 353,225.10 and 85,892.60 is: 128,838.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,483.40 : 353,225.10 = 85,892.60 : x
  2. Step 2: Convert to fraction form
    235,483.40/353,225.10 = 85,892.60/x
  3. Step 3: Cross multiply
    235,483.40x = 353,225.10 × 85,892.60
  4. Step 4: Simplify right side
    235,483.40x = 30,339,422,224.26
  5. Step 5: Solve for x
    x = 30,339,422,224.26/235,483.40
  6. Step 6: Final answer
    x = 128,838.90

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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.