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Finding the Fourth Proportional to 218,374.48, 301,363.49 and 118,925.78

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Solution

The fourth proportional to 218,374.48, 301,363.49 and 118,925.78 is: 164,121.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,374.48 : 301,363.49 = 118,925.78 : x
  2. Step 2: Convert to fraction form
    218,374.48/301,363.49 = 118,925.78/x
  3. Step 3: Cross multiply
    218,374.48x = 301,363.49 × 118,925.78
  4. Step 4: Simplify right side
    218,374.48x = 35,839,888,111.77
  5. Step 5: Solve for x
    x = 35,839,888,111.77/218,374.48
  6. Step 6: Final answer
    x = 164,121.23

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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.