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Finding the Fourth Proportional to 140,807.06, 209,954.53 and 125,159.07

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Solution

The fourth proportional to 140,807.06, 209,954.53 and 125,159.07 is: 186,622.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,807.06 : 209,954.53 = 125,159.07 : x
  2. Step 2: Convert to fraction form
    140,807.06/209,954.53 = 125,159.07/x
  3. Step 3: Cross multiply
    140,807.06x = 209,954.53 × 125,159.07
  4. Step 4: Simplify right side
    140,807.06x = 26,277,714,660.87
  5. Step 5: Solve for x
    x = 26,277,714,660.87/140,807.06
  6. Step 6: Final answer
    x = 186,622.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.