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Finding the Fourth Proportional to 248,421.84, 342,822.13 and 135,244.59

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Solution

The fourth proportional to 248,421.84, 342,822.13 and 135,244.59 is: 186,637.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,421.84 : 342,822.13 = 135,244.59 : x
  2. Step 2: Convert to fraction form
    248,421.84/342,822.13 = 135,244.59/x
  3. Step 3: Cross multiply
    248,421.84x = 342,822.13 × 135,244.59
  4. Step 4: Simplify right side
    248,421.84x = 46,364,837,171.46
  5. Step 5: Solve for x
    x = 46,364,837,171.46/248,421.84
  6. Step 6: Final answer
    x = 186,637.53

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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.