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Finding the Fourth Proportional to 170,717.30, 256,075.95 and 161,969.30

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Solution

The fourth proportional to 170,717.30, 256,075.95 and 161,969.30 is: 242,953.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,717.30 : 256,075.95 = 161,969.30 : x
  2. Step 2: Convert to fraction form
    170,717.30/256,075.95 = 161,969.30/x
  3. Step 3: Cross multiply
    170,717.30x = 256,075.95 × 161,969.30
  4. Step 4: Simplify right side
    170,717.30x = 41,476,442,368.34
  5. Step 5: Solve for x
    x = 41,476,442,368.34/170,717.30
  6. Step 6: Final answer
    x = 242,953.95

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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.