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Finding the Fourth Proportional to 144,329.49, 216,503.12 and 55,583.08

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Solution

The fourth proportional to 144,329.49, 216,503.12 and 55,583.08 is: 83,378.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,329.49 : 216,503.12 = 55,583.08 : x
  2. Step 2: Convert to fraction form
    144,329.49/216,503.12 = 55,583.08/x
  3. Step 3: Cross multiply
    144,329.49x = 216,503.12 × 55,583.08
  4. Step 4: Simplify right side
    144,329.49x = 12,033,909,836.91
  5. Step 5: Solve for x
    x = 12,033,909,836.91/144,329.49
  6. Step 6: Final answer
    x = 83,378.04

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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.