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Finding the Fourth Proportional to 114,615.30, 171,922.95 and 72,624.90

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Solution

The fourth proportional to 114,615.30, 171,922.95 and 72,624.90 is: 108,937.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,615.30 : 171,922.95 = 72,624.90 : x
  2. Step 2: Convert to fraction form
    114,615.30/171,922.95 = 72,624.90/x
  3. Step 3: Cross multiply
    114,615.30x = 171,922.95 × 72,624.90
  4. Step 4: Simplify right side
    114,615.30x = 12,485,887,051.46
  5. Step 5: Solve for x
    x = 12,485,887,051.46/114,615.30
  6. Step 6: Final answer
    x = 108,937.35

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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.