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Finding the Fourth Proportional to 193,482.88, 266,972.16 and 118,055.68

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Solution

The fourth proportional to 193,482.88, 266,972.16 and 118,055.68 is: 162,895.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,482.88 : 266,972.16 = 118,055.68 : x
  2. Step 2: Convert to fraction form
    193,482.88/266,972.16 = 118,055.68/x
  3. Step 3: Cross multiply
    193,482.88x = 266,972.16 × 118,055.68
  4. Step 4: Simplify right side
    193,482.88x = 31,517,579,889.87
  5. Step 5: Solve for x
    x = 31,517,579,889.87/193,482.88
  6. Step 6: Final answer
    x = 162,895.96

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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.