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Finding the Fourth Proportional to 118,766.16, 163,897.37 and 65,054.60

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Solution

The fourth proportional to 118,766.16, 163,897.37 and 65,054.60 is: 89,775.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,766.16 : 163,897.37 = 65,054.60 : x
  2. Step 2: Convert to fraction form
    118,766.16/163,897.37 = 65,054.60/x
  3. Step 3: Cross multiply
    118,766.16x = 163,897.37 × 65,054.60
  4. Step 4: Simplify right side
    118,766.16x = 10,662,276,701.64
  5. Step 5: Solve for x
    x = 10,662,276,701.64/118,766.16
  6. Step 6: Final answer
    x = 89,775.38

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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.