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Finding the Fourth Proportional to 118,703.01, 163,810.63 and 64,993.02

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Solution

The fourth proportional to 118,703.01, 163,810.63 and 64,993.02 is: 89,690.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,703.01 : 163,810.63 = 64,993.02 : x
  2. Step 2: Convert to fraction form
    118,703.01/163,810.63 = 64,993.02/x
  3. Step 3: Cross multiply
    118,703.01x = 163,810.63 × 64,993.02
  4. Step 4: Simplify right side
    118,703.01x = 10,646,548,247.33
  5. Step 5: Solve for x
    x = 10,646,548,247.33/118,703.01
  6. Step 6: Final answer
    x = 89,690.63

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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.