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Finding the Fourth Proportional to 155,903.40, 233,855.10 and 96,805.80

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Solution

The fourth proportional to 155,903.40, 233,855.10 and 96,805.80 is: 145,208.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,903.40 : 233,855.10 = 96,805.80 : x
  2. Step 2: Convert to fraction form
    155,903.40/233,855.10 = 96,805.80/x
  3. Step 3: Cross multiply
    155,903.40x = 233,855.10 × 96,805.80
  4. Step 4: Simplify right side
    155,903.40x = 22,638,530,039.58
  5. Step 5: Solve for x
    x = 22,638,530,039.58/155,903.40
  6. Step 6: Final answer
    x = 145,208.70

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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.