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Finding the Fourth Proportional to 268,535.66, 402,802.88 and 100,052.21

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Solution

The fourth proportional to 268,535.66, 402,802.88 and 100,052.21 is: 150,078.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,535.66 : 402,802.88 = 100,052.21 : x
  2. Step 2: Convert to fraction form
    268,535.66/402,802.88 = 100,052.21/x
  3. Step 3: Cross multiply
    268,535.66x = 402,802.88 × 100,052.21
  4. Step 4: Simplify right side
    268,535.66x = 40,301,318,845.11
  5. Step 5: Solve for x
    x = 40,301,318,845.11/268,535.66
  6. Step 6: Final answer
    x = 150,078.09

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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.