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Finding the Fourth Proportional to 268,321.64, 370,259.76 and 147,461.60

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Solution

The fourth proportional to 268,321.64, 370,259.76 and 147,461.60 is: 203,483.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,321.64 : 370,259.76 = 147,461.60 : x
  2. Step 2: Convert to fraction form
    268,321.64/370,259.76 = 147,461.60/x
  3. Step 3: Cross multiply
    268,321.64x = 370,259.76 × 147,461.60
  4. Step 4: Simplify right side
    268,321.64x = 54,599,096,625.22
  5. Step 5: Solve for x
    x = 54,599,096,625.22/268,321.64
  6. Step 6: Final answer
    x = 203,483.76

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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.