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Finding the Fourth Proportional to 99,573.52, 137,413.04 and 54,253.64

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Solution

The fourth proportional to 99,573.52, 137,413.04 and 54,253.64 is: 74,870.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,573.52 : 137,413.04 = 54,253.64 : x
  2. Step 2: Convert to fraction form
    99,573.52/137,413.04 = 54,253.64/x
  3. Step 3: Cross multiply
    99,573.52x = 137,413.04 × 54,253.64
  4. Step 4: Simplify right side
    99,573.52x = 7,455,157,603.47
  5. Step 5: Solve for x
    x = 7,455,157,603.47/99,573.52
  6. Step 6: Final answer
    x = 74,870.89

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1.5x scale

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.