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Finding the Fourth Proportional to 248,066.50, 342,331.77 and 134,890.06

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Solution

The fourth proportional to 248,066.50, 342,331.77 and 134,890.06 is: 186,148.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,066.50 : 342,331.77 = 134,890.06 : x
  2. Step 2: Convert to fraction form
    248,066.50/342,331.77 = 134,890.06/x
  3. Step 3: Cross multiply
    248,066.50x = 342,331.77 × 134,890.06
  4. Step 4: Simplify right side
    248,066.50x = 46,177,152,995.21
  5. Step 5: Solve for x
    x = 46,177,152,995.21/248,066.50
  6. Step 6: Final answer
    x = 186,148.28

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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.