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Finding the Fourth Proportional to 269,798.88, 372,312.69 and 148,937.58

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Solution

The fourth proportional to 269,798.88, 372,312.69 and 148,937.58 is: 205,528.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,798.88 : 372,312.69 = 148,937.58 : x
  2. Step 2: Convert to fraction form
    269,798.88/372,312.69 = 148,937.58/x
  3. Step 3: Cross multiply
    269,798.88x = 372,312.69 × 148,937.58
  4. Step 4: Simplify right side
    269,798.88x = 55,451,351,051.89
  5. Step 5: Solve for x
    x = 55,451,351,051.89/269,798.88
  6. Step 6: Final answer
    x = 205,528.47

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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.