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Finding the Fourth Proportional to 94,434, 141,651 and 28,770

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Solution

The fourth proportional to 94,434, 141,651 and 28,770 is: 43,155

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,434 : 141,651 = 28,770 : x
  2. Step 2: Convert to fraction form
    94,434/141,651 = 28,770/x
  3. Step 3: Cross multiply
    94,434x = 141,651 × 28,770
  4. Step 4: Simplify right side
    94,434x = 4,075,299,270
  5. Step 5: Solve for x
    x = 4,075,299,270/94,434
  6. Step 6: Final answer
    x = 43,155

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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.