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Finding the Fourth Proportional to 291,482.82, 402,274.98 and 170,616.78

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Solution

The fourth proportional to 291,482.82, 402,274.98 and 170,616.78 is: 235,467.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,482.82 : 402,274.98 = 170,616.78 : x
  2. Step 2: Convert to fraction form
    291,482.82/402,274.98 = 170,616.78/x
  3. Step 3: Cross multiply
    291,482.82x = 402,274.98 × 170,616.78
  4. Step 4: Simplify right side
    291,482.82x = 68,634,861,762.16
  5. Step 5: Solve for x
    x = 68,634,861,762.16/291,482.82
  6. Step 6: Final answer
    x = 235,467.95

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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.