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Finding the Fourth Proportional to 134,798.78, 201,927.54 and 67,126.88

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Solution

The fourth proportional to 134,798.78, 201,927.54 and 67,126.88 is: 100,555.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,798.78 : 201,927.54 = 67,126.88 : x
  2. Step 2: Convert to fraction form
    134,798.78/201,927.54 = 67,126.88/x
  3. Step 3: Cross multiply
    134,798.78x = 201,927.54 × 67,126.88
  4. Step 4: Simplify right side
    134,798.78x = 13,554,765,746.28
  5. Step 5: Solve for x
    x = 13,554,765,746.28/134,798.78
  6. Step 6: Final answer
    x = 100,555.55

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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.