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Finding the Fourth Proportional to 342,354.86, 513,428.61 and 93,004.46

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Solution

The fourth proportional to 342,354.86, 513,428.61 and 93,004.46 is: 139,478.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,354.86 : 513,428.61 = 93,004.46 : x
  2. Step 2: Convert to fraction form
    342,354.86/513,428.61 = 93,004.46/x
  3. Step 3: Cross multiply
    342,354.86x = 513,428.61 × 93,004.46
  4. Step 4: Simplify right side
    342,354.86x = 47,751,150,621.60
  5. Step 5: Solve for x
    x = 47,751,150,621.60/342,354.86
  6. Step 6: Final answer
    x = 139,478.52

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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.