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Finding the Fourth Proportional to 268,303.21, 370,257.22 and 153,581.22

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Solution

The fourth proportional to 268,303.21, 370,257.22 and 153,581.22 is: 211,941.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,303.21 : 370,257.22 = 153,581.22 : x
  2. Step 2: Convert to fraction form
    268,303.21/370,257.22 = 153,581.22/x
  3. Step 3: Cross multiply
    268,303.21x = 370,257.22 × 153,581.22
  4. Step 4: Simplify right side
    268,303.21x = 56,864,555,905.73
  5. Step 5: Solve for x
    x = 56,864,555,905.73/268,303.21
  6. Step 6: Final answer
    x = 211,941.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.