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Finding the Fourth Proportional to 134,673.70, 185,851 and 74,246.70

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Solution

The fourth proportional to 134,673.70, 185,851 and 74,246.70 is: 102,461.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,673.70 : 185,851 = 74,246.70 : x
  2. Step 2: Convert to fraction form
    134,673.70/185,851 = 74,246.70/x
  3. Step 3: Cross multiply
    134,673.70x = 185,851 × 74,246.70
  4. Step 4: Simplify right side
    134,673.70x = 13,798,823,441.70
  5. Step 5: Solve for x
    x = 13,798,823,441.70/134,673.70
  6. Step 6: Final answer
    x = 102,461.16

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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.