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Finding the Fourth Proportional to 247,976.98, 342,211.63 and 134,802.16

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Solution

The fourth proportional to 247,976.98, 342,211.63 and 134,802.16 is: 186,028.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,976.98 : 342,211.63 = 134,802.16 : x
  2. Step 2: Convert to fraction form
    247,976.98/342,211.63 = 134,802.16/x
  3. Step 3: Cross multiply
    247,976.98x = 342,211.63 × 134,802.16
  4. Step 4: Simplify right side
    247,976.98x = 46,130,866,901.12
  5. Step 5: Solve for x
    x = 46,130,866,901.12/247,976.98
  6. Step 6: Final answer
    x = 186,028.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.