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Finding the Fourth Proportional to 188,570.79, 260,237.03 and 116,973.87

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Solution

The fourth proportional to 188,570.79, 260,237.03 and 116,973.87 is: 161,429.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,570.79 : 260,237.03 = 116,973.87 : x
  2. Step 2: Convert to fraction form
    188,570.79/260,237.03 = 116,973.87/x
  3. Step 3: Cross multiply
    188,570.79x = 260,237.03 × 116,973.87
  4. Step 4: Simplify right side
    188,570.79x = 30,440,932,582.13
  5. Step 5: Solve for x
    x = 30,440,932,582.13/188,570.79
  6. Step 6: Final answer
    x = 161,429.74

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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.