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Finding the Fourth Proportional to 108,986.50, 163,479.75 and 35,114.50

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Solution

The fourth proportional to 108,986.50, 163,479.75 and 35,114.50 is: 52,671.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,986.50 : 163,479.75 = 35,114.50 : x
  2. Step 2: Convert to fraction form
    108,986.50/163,479.75 = 35,114.50/x
  3. Step 3: Cross multiply
    108,986.50x = 163,479.75 × 35,114.50
  4. Step 4: Simplify right side
    108,986.50x = 5,740,509,681.38
  5. Step 5: Solve for x
    x = 5,740,509,681.38/108,986.50
  6. Step 6: Final answer
    x = 52,671.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.