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Finding the Fourth Proportional to 248,500.80, 342,935.01 and 135,323.46

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Solution

The fourth proportional to 248,500.80, 342,935.01 and 135,323.46 is: 186,748.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,500.80 : 342,935.01 = 135,323.46 : x
  2. Step 2: Convert to fraction form
    248,500.80/342,935.01 = 135,323.46/x
  3. Step 3: Cross multiply
    248,500.80x = 342,935.01 × 135,323.46
  4. Step 4: Simplify right side
    248,500.80x = 46,407,152,108.33
  5. Step 5: Solve for x
    x = 46,407,152,108.33/248,500.80
  6. Step 6: Final answer
    x = 186,748.50

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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.