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Finding the Fourth Proportional to 103,266.55, 155,015.03 and 96,498.55

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Solution

The fourth proportional to 103,266.55, 155,015.03 and 96,498.55 is: 144,855.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,266.55 : 155,015.03 = 96,498.55 : x
  2. Step 2: Convert to fraction form
    103,266.55/155,015.03 = 96,498.55/x
  3. Step 3: Cross multiply
    103,266.55x = 155,015.03 × 96,498.55
  4. Step 4: Simplify right side
    103,266.55x = 14,958,725,140.71
  5. Step 5: Solve for x
    x = 14,958,725,140.71/103,266.55
  6. Step 6: Final answer
    x = 144,855.47

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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.