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Finding the Fourth Proportional to 245,809.63, 368,829.26 and 127,416.38

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Solution

The fourth proportional to 245,809.63, 368,829.26 and 127,416.38 is: 191,184.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,809.63 : 368,829.26 = 127,416.38 : x
  2. Step 2: Convert to fraction form
    245,809.63/368,829.26 = 127,416.38/x
  3. Step 3: Cross multiply
    245,809.63x = 368,829.26 × 127,416.38
  4. Step 4: Simplify right side
    245,809.63x = 46,994,890,387.89
  5. Step 5: Solve for x
    x = 46,994,890,387.89/245,809.63
  6. Step 6: Final answer
    x = 191,184.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.