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Finding the Fourth Proportional to 191,603.64, 264,413.10 and 111,077.85

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Solution

The fourth proportional to 191,603.64, 264,413.10 and 111,077.85 is: 153,287.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,603.64 : 264,413.10 = 111,077.85 : x
  2. Step 2: Convert to fraction form
    191,603.64/264,413.10 = 111,077.85/x
  3. Step 3: Cross multiply
    191,603.64x = 264,413.10 × 111,077.85
  4. Step 4: Simplify right side
    191,603.64x = 29,370,437,337.77
  5. Step 5: Solve for x
    x = 29,370,437,337.77/191,603.64
  6. Step 6: Final answer
    x = 153,287.47

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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.