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Finding the Fourth Proportional to 362,368.80, 543,442.46 and 172,729.26

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Solution

The fourth proportional to 362,368.80, 543,442.46 and 172,729.26 is: 259,041.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,368.80 : 543,442.46 = 172,729.26 : x
  2. Step 2: Convert to fraction form
    362,368.80/543,442.46 = 172,729.26/x
  3. Step 3: Cross multiply
    362,368.80x = 543,442.46 × 172,729.26
  4. Step 4: Simplify right side
    362,368.80x = 93,868,413,968.38
  5. Step 5: Solve for x
    x = 93,868,413,968.38/362,368.80
  6. Step 6: Final answer
    x = 259,041.10

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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.