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Finding the Fourth Proportional to 170,701.30, 256,051.95 and 91,969.30

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Solution

The fourth proportional to 170,701.30, 256,051.95 and 91,969.30 is: 137,953.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,701.30 : 256,051.95 = 91,969.30 : x
  2. Step 2: Convert to fraction form
    170,701.30/256,051.95 = 91,969.30/x
  3. Step 3: Cross multiply
    170,701.30x = 256,051.95 × 91,969.30
  4. Step 4: Simplify right side
    170,701.30x = 23,548,918,605.14
  5. Step 5: Solve for x
    x = 23,548,918,605.14/170,701.30
  6. Step 6: Final answer
    x = 137,953.95

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1.5x scale

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.