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Finding the Fourth Proportional to 248,231, 342,561.48 and 135,056.18

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Solution

The fourth proportional to 248,231, 342,561.48 and 135,056.18 is: 186,379.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,231 : 342,561.48 = 135,056.18 : x
  2. Step 2: Convert to fraction form
    248,231/342,561.48 = 135,056.18/x
  3. Step 3: Cross multiply
    248,231x = 342,561.48 × 135,056.18
  4. Step 4: Simplify right side
    248,231x = 46,265,044,903.95
  5. Step 5: Solve for x
    x = 46,265,044,903.95/248,231
  6. Step 6: Final answer
    x = 186,379.00

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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.