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Finding the Fourth Proportional to 114,577.80, 171,909.90 and 55,465.80

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Solution

The fourth proportional to 114,577.80, 171,909.90 and 55,465.80 is: 83,219.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,577.80 : 171,909.90 = 55,465.80 : x
  2. Step 2: Convert to fraction form
    114,577.80/171,909.90 = 55,465.80/x
  3. Step 3: Cross multiply
    114,577.80x = 171,909.90 × 55,465.80
  4. Step 4: Simplify right side
    114,577.80x = 9,535,120,131.42
  5. Step 5: Solve for x
    x = 9,535,120,131.42/114,577.80
  6. Step 6: Final answer
    x = 83,219.61

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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.