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Finding the Fourth Proportional to 144,955.99, 200,038.87 and 81,295.15

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Solution

The fourth proportional to 144,955.99, 200,038.87 and 81,295.15 is: 112,187.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,955.99 : 200,038.87 = 81,295.15 : x
  2. Step 2: Convert to fraction form
    144,955.99/200,038.87 = 81,295.15/x
  3. Step 3: Cross multiply
    144,955.99x = 200,038.87 × 81,295.15
  4. Step 4: Simplify right side
    144,955.99x = 16,262,189,942.48
  5. Step 5: Solve for x
    x = 16,262,189,942.48/144,955.99
  6. Step 6: Final answer
    x = 112,187.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.