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Finding the Fourth Proportional to 368,148.32, 552,280.92 and 118,772

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Solution

The fourth proportional to 368,148.32, 552,280.92 and 118,772 is: 178,176.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,148.32 : 552,280.92 = 118,772 : x
  2. Step 2: Convert to fraction form
    368,148.32/552,280.92 = 118,772/x
  3. Step 3: Cross multiply
    368,148.32x = 552,280.92 × 118,772
  4. Step 4: Simplify right side
    368,148.32x = 65,595,509,430.24
  5. Step 5: Solve for x
    x = 65,595,509,430.24/368,148.32
  6. Step 6: Final answer
    x = 178,176.85

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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.