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Finding the Fourth Proportional to 355,413.52, 533,268.40 and 155,877.12

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Solution

The fourth proportional to 355,413.52, 533,268.40 and 155,877.12 is: 233,880.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,413.52 : 533,268.40 = 155,877.12 : x
  2. Step 2: Convert to fraction form
    355,413.52/533,268.40 = 155,877.12/x
  3. Step 3: Cross multiply
    355,413.52x = 533,268.40 × 155,877.12
  4. Step 4: Simplify right side
    355,413.52x = 83,124,342,379.01
  5. Step 5: Solve for x
    x = 83,124,342,379.01/355,413.52
  6. Step 6: Final answer
    x = 233,880.64

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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.