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Finding the Fourth Proportional to 261,287.61, 360,653.63 and 170,657.43

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Solution

The fourth proportional to 261,287.61, 360,653.63 and 170,657.43 is: 235,557.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,287.61 : 360,653.63 = 170,657.43 : x
  2. Step 2: Convert to fraction form
    261,287.61/360,653.63 = 170,657.43/x
  3. Step 3: Cross multiply
    261,287.61x = 360,653.63 × 170,657.43
  4. Step 4: Simplify right side
    261,287.61x = 61,548,221,615.97
  5. Step 5: Solve for x
    x = 61,548,221,615.97/261,287.61
  6. Step 6: Final answer
    x = 235,557.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.