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Finding the Fourth Proportional to 112,017.20, 168,025.80 and 96,810.80

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Solution

The fourth proportional to 112,017.20, 168,025.80 and 96,810.80 is: 145,216.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,017.20 : 168,025.80 = 96,810.80 : x
  2. Step 2: Convert to fraction form
    112,017.20/168,025.80 = 96,810.80/x
  3. Step 3: Cross multiply
    112,017.20x = 168,025.80 × 96,810.80
  4. Step 4: Simplify right side
    112,017.20x = 16,266,712,118.64
  5. Step 5: Solve for x
    x = 16,266,712,118.64/112,017.20
  6. Step 6: Final answer
    x = 145,216.20

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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.