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Finding the Fourth Proportional to 368,376, 552,442.50 and 118,999.68

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Solution

The fourth proportional to 368,376, 552,442.50 and 118,999.68 is: 178,460.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,376 : 552,442.50 = 118,999.68 : x
  2. Step 2: Convert to fraction form
    368,376/552,442.50 = 118,999.68/x
  3. Step 3: Cross multiply
    368,376x = 552,442.50 × 118,999.68
  4. Step 4: Simplify right side
    368,376x = 65,740,480,718.40
  5. Step 5: Solve for x
    x = 65,740,480,718.40/368,376
  6. Step 6: Final answer
    x = 178,460.27

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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.