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Finding the Fourth Proportional to 118,630.48, 163,893.92 and 99,476.48

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Solution

The fourth proportional to 118,630.48, 163,893.92 and 99,476.48 is: 137,431.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,630.48 : 163,893.92 = 99,476.48 : x
  2. Step 2: Convert to fraction form
    118,630.48/163,893.92 = 99,476.48/x
  3. Step 3: Cross multiply
    118,630.48x = 163,893.92 × 99,476.48
  4. Step 4: Simplify right side
    118,630.48x = 16,303,590,255.00
  5. Step 5: Solve for x
    x = 16,303,590,255.00/118,630.48
  6. Step 6: Final answer
    x = 137,431.71

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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.