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Finding the Fourth Proportional to 213,065.99, 319,186.84 and 178,460.91

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Solution

The fourth proportional to 213,065.99, 319,186.84 and 178,460.91 is: 267,346.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,065.99 : 319,186.84 = 178,460.91 : x
  2. Step 2: Convert to fraction form
    213,065.99/319,186.84 = 178,460.91/x
  3. Step 3: Cross multiply
    213,065.99x = 319,186.84 × 178,460.91
  4. Step 4: Simplify right side
    213,065.99x = 56,962,373,926.42
  5. Step 5: Solve for x
    x = 56,962,373,926.42/213,065.99
  6. Step 6: Final answer
    x = 267,346.16

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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.