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Finding the Fourth Proportional to 369,399.69, 554,130.98 and 116,612.55

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Solution

The fourth proportional to 369,399.69, 554,130.98 and 116,612.55 is: 174,928.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,399.69 : 554,130.98 = 116,612.55 : x
  2. Step 2: Convert to fraction form
    369,399.69/554,130.98 = 116,612.55/x
  3. Step 3: Cross multiply
    369,399.69x = 554,130.98 × 116,612.55
  4. Step 4: Simplify right side
    369,399.69x = 64,618,626,028.74
  5. Step 5: Solve for x
    x = 64,618,626,028.74/369,399.69
  6. Step 6: Final answer
    x = 174,928.75

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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.