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Finding the Fourth Proportional to 121,230.60, 181,875.06 and 38,124.60

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Solution

The fourth proportional to 121,230.60, 181,875.06 and 38,124.60 is: 57,196.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,230.60 : 181,875.06 = 38,124.60 : x
  2. Step 2: Convert to fraction form
    121,230.60/181,875.06 = 38,124.60/x
  3. Step 3: Cross multiply
    121,230.60x = 181,875.06 × 38,124.60
  4. Step 4: Simplify right side
    121,230.60x = 6,933,913,912.48
  5. Step 5: Solve for x
    x = 6,933,913,912.48/121,230.60
  6. Step 6: Final answer
    x = 57,196.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.