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Finding the Fourth Proportional to 114,315.80, 171,473.70 and 72,325.40

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Solution

The fourth proportional to 114,315.80, 171,473.70 and 72,325.40 is: 108,488.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,315.80 : 171,473.70 = 72,325.40 : x
  2. Step 2: Convert to fraction form
    114,315.80/171,473.70 = 72,325.40/x
  3. Step 3: Cross multiply
    114,315.80x = 171,473.70 × 72,325.40
  4. Step 4: Simplify right side
    114,315.80x = 12,401,903,941.98
  5. Step 5: Solve for x
    x = 12,401,903,941.98/114,315.80
  6. Step 6: Final answer
    x = 108,488.10

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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.