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Finding the Fourth Proportional to 252,563.76, 348,536.37 and 139,386.51

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Solution

The fourth proportional to 252,563.76, 348,536.37 and 139,386.51 is: 192,352.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,563.76 : 348,536.37 = 139,386.51 : x
  2. Step 2: Convert to fraction form
    252,563.76/348,536.37 = 139,386.51/x
  3. Step 3: Cross multiply
    252,563.76x = 348,536.37 × 139,386.51
  4. Step 4: Simplify right side
    252,563.76x = 48,581,268,222.37
  5. Step 5: Solve for x
    x = 48,581,268,222.37/252,563.76
  6. Step 6: Final answer
    x = 192,352.49

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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.