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Finding the Fourth Proportional to 185,309.66, 255,725.49 and 103,637.01

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Solution

The fourth proportional to 185,309.66, 255,725.49 and 103,637.01 is: 143,018.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,309.66 : 255,725.49 = 103,637.01 : x
  2. Step 2: Convert to fraction form
    185,309.66/255,725.49 = 103,637.01/x
  3. Step 3: Cross multiply
    185,309.66x = 255,725.49 × 103,637.01
  4. Step 4: Simplify right side
    185,309.66x = 26,502,625,164.38
  5. Step 5: Solve for x
    x = 26,502,625,164.38/185,309.66
  6. Step 6: Final answer
    x = 143,018.04

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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.