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Finding the Fourth Proportional to 235,823.81, 325,471.77 and 139,045.41

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Solution

The fourth proportional to 235,823.81, 325,471.77 and 139,045.41 is: 191,903.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,823.81 : 325,471.77 = 139,045.41 : x
  2. Step 2: Convert to fraction form
    235,823.81/325,471.77 = 139,045.41/x
  3. Step 3: Cross multiply
    235,823.81x = 325,471.77 × 139,045.41
  4. Step 4: Simplify right side
    235,823.81x = 45,255,355,703.08
  5. Step 5: Solve for x
    x = 45,255,355,703.08/235,823.81
  6. Step 6: Final answer
    x = 191,903.25

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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.