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Finding the Fourth Proportional to 144,245.76, 216,368.64 and 55,541.04

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Solution

The fourth proportional to 144,245.76, 216,368.64 and 55,541.04 is: 83,311.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,245.76 : 216,368.64 = 55,541.04 : x
  2. Step 2: Convert to fraction form
    144,245.76/216,368.64 = 55,541.04/x
  3. Step 3: Cross multiply
    144,245.76x = 216,368.64 × 55,541.04
  4. Step 4: Simplify right side
    144,245.76x = 12,017,339,288.99
  5. Step 5: Solve for x
    x = 12,017,339,288.99/144,245.76
  6. Step 6: Final answer
    x = 83,311.56

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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.