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Finding the Fourth Proportional to 257,262.84, 355,146.12 and 180,847.44

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Solution

The fourth proportional to 257,262.84, 355,146.12 and 180,847.44 is: 249,656.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,262.84 : 355,146.12 = 180,847.44 : x
  2. Step 2: Convert to fraction form
    257,262.84/355,146.12 = 180,847.44/x
  3. Step 3: Cross multiply
    257,262.84x = 355,146.12 × 180,847.44
  4. Step 4: Simplify right side
    257,262.84x = 64,227,266,627.93
  5. Step 5: Solve for x
    x = 64,227,266,627.93/257,262.84
  6. Step 6: Final answer
    x = 249,656.21

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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.