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Finding the Fourth Proportional to 118,838.48, 163,996.36 and 65,846.48

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Solution

The fourth proportional to 118,838.48, 163,996.36 and 65,846.48 is: 90,867.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,838.48 : 163,996.36 = 65,846.48 : x
  2. Step 2: Convert to fraction form
    118,838.48/163,996.36 = 65,846.48/x
  3. Step 3: Cross multiply
    118,838.48x = 163,996.36 × 65,846.48
  4. Step 4: Simplify right side
    118,838.48x = 10,798,583,038.81
  5. Step 5: Solve for x
    x = 10,798,583,038.81/118,838.48
  6. Step 6: Final answer
    x = 90,867.73

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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.