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Finding the Fourth Proportional to 172,313.66, 237,813.80 and 104,328.94

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Solution

The fourth proportional to 172,313.66, 237,813.80 and 104,328.94 is: 143,986.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,313.66 : 237,813.80 = 104,328.94 : x
  2. Step 2: Convert to fraction form
    172,313.66/237,813.80 = 104,328.94/x
  3. Step 3: Cross multiply
    172,313.66x = 237,813.80 × 104,328.94
  4. Step 4: Simplify right side
    172,313.66x = 24,810,861,671.37
  5. Step 5: Solve for x
    x = 24,810,861,671.37/172,313.66
  6. Step 6: Final answer
    x = 143,986.62

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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.