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Finding the Fourth Proportional to 369,969.51, 554,738.91 and 145,066.33

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Solution

The fourth proportional to 369,969.51, 554,738.91 and 145,066.33 is: 217,515.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,969.51 : 554,738.91 = 145,066.33 : x
  2. Step 2: Convert to fraction form
    369,969.51/554,738.91 = 145,066.33/x
  3. Step 3: Cross multiply
    369,969.51x = 554,738.91 × 145,066.33
  4. Step 4: Simplify right side
    369,969.51x = 80,473,937,781.90
  5. Step 5: Solve for x
    x = 80,473,937,781.90/369,969.51
  6. Step 6: Final answer
    x = 217,515.05

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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.