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Finding the Fourth Proportional to 317,612.16, 476,605.08 and 118,072.80

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Solution

The fourth proportional to 317,612.16, 476,605.08 and 118,072.80 is: 177,178.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,612.16 : 476,605.08 = 118,072.80 : x
  2. Step 2: Convert to fraction form
    317,612.16/476,605.08 = 118,072.80/x
  3. Step 3: Cross multiply
    317,612.16x = 476,605.08 × 118,072.80
  4. Step 4: Simplify right side
    317,612.16x = 56,274,096,289.82
  5. Step 5: Solve for x
    x = 56,274,096,289.82/317,612.16
  6. Step 6: Final answer
    x = 177,178.66

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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.