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Finding the Fourth Proportional to 144,494.94, 216,720.54 and 39,322.11

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Solution

The fourth proportional to 144,494.94, 216,720.54 and 39,322.11 is: 58,977.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,494.94 : 216,720.54 = 39,322.11 : x
  2. Step 2: Convert to fraction form
    144,494.94/216,720.54 = 39,322.11/x
  3. Step 3: Cross multiply
    144,494.94x = 216,720.54 × 39,322.11
  4. Step 4: Simplify right side
    144,494.94x = 8,521,908,913.14
  5. Step 5: Solve for x
    x = 8,521,908,913.14/144,494.94
  6. Step 6: Final answer
    x = 58,977.21

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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.