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Finding the Fourth Proportional to 170,868.30, 256,302.45 and 46,209.30

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Solution

The fourth proportional to 170,868.30, 256,302.45 and 46,209.30 is: 69,313.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,868.30 : 256,302.45 = 46,209.30 : x
  2. Step 2: Convert to fraction form
    170,868.30/256,302.45 = 46,209.30/x
  3. Step 3: Cross multiply
    170,868.30x = 256,302.45 × 46,209.30
  4. Step 4: Simplify right side
    170,868.30x = 11,843,556,802.79
  5. Step 5: Solve for x
    x = 11,843,556,802.79/170,868.30
  6. Step 6: Final answer
    x = 69,313.95

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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.