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Finding the Fourth Proportional to 134,477.74, 185,577.75 and 74,047.12

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Solution

The fourth proportional to 134,477.74, 185,577.75 and 74,047.12 is: 102,184.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,477.74 : 185,577.75 = 74,047.12 : x
  2. Step 2: Convert to fraction form
    134,477.74/185,577.75 = 74,047.12/x
  3. Step 3: Cross multiply
    134,477.74x = 185,577.75 × 74,047.12
  4. Step 4: Simplify right side
    134,477.74x = 13,741,497,923.58
  5. Step 5: Solve for x
    x = 13,741,497,923.58/134,477.74
  6. Step 6: Final answer
    x = 102,184.18

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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.