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Finding the Fourth Proportional to 185,308.66, 255,724.11 and 103,636.01

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Solution

The fourth proportional to 185,308.66, 255,724.11 and 103,636.01 is: 143,016.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,308.66 : 255,724.11 = 103,636.01 : x
  2. Step 2: Convert to fraction form
    185,308.66/255,724.11 = 103,636.01/x
  3. Step 3: Cross multiply
    185,308.66x = 255,724.11 × 103,636.01
  4. Step 4: Simplify right side
    185,308.66x = 26,502,225,913.54
  5. Step 5: Solve for x
    x = 26,502,225,913.54/185,308.66
  6. Step 6: Final answer
    x = 143,016.66

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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.