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Finding the Fourth Proportional to 369,980.39, 554,986.18 and 117,255.33

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Solution

The fourth proportional to 369,980.39, 554,986.18 and 117,255.33 is: 175,887.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,980.39 : 554,986.18 = 117,255.33 : x
  2. Step 2: Convert to fraction form
    369,980.39/554,986.18 = 117,255.33/x
  3. Step 3: Cross multiply
    369,980.39x = 554,986.18 × 117,255.33
  4. Step 4: Simplify right side
    369,980.39x = 65,075,087,827.91
  5. Step 5: Solve for x
    x = 65,075,087,827.91/369,980.39
  6. Step 6: Final answer
    x = 175,887.94

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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.