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Finding the Fourth Proportional to 124,554.66, 186,905.80 and 116,673.72

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Solution

The fourth proportional to 124,554.66, 186,905.80 and 116,673.72 is: 175,079.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,554.66 : 186,905.80 = 116,673.72 : x
  2. Step 2: Convert to fraction form
    124,554.66/186,905.80 = 116,673.72/x
  3. Step 3: Cross multiply
    124,554.66x = 186,905.80 × 116,673.72
  4. Step 4: Simplify right side
    124,554.66x = 21,806,994,975.58
  5. Step 5: Solve for x
    x = 21,806,994,975.58/124,554.66
  6. Step 6: Final answer
    x = 175,079.72

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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.