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Finding the Fourth Proportional to 79,042.40, 118,656.24 and 62,413.68

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Solution

The fourth proportional to 79,042.40, 118,656.24 and 62,413.68 is: 93,693.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,042.40 : 118,656.24 = 62,413.68 : x
  2. Step 2: Convert to fraction form
    79,042.40/118,656.24 = 62,413.68/x
  3. Step 3: Cross multiply
    79,042.40x = 118,656.24 × 62,413.68
  4. Step 4: Simplify right side
    79,042.40x = 7,405,772,593.36
  5. Step 5: Solve for x
    x = 7,405,772,593.36/79,042.40
  6. Step 6: Final answer
    x = 93,693.67

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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.