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Finding the Fourth Proportional to 170,985.94, 256,478.91 and 46,326.94

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Solution

The fourth proportional to 170,985.94, 256,478.91 and 46,326.94 is: 69,490.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,985.94 : 256,478.91 = 46,326.94 : x
  2. Step 2: Convert to fraction form
    170,985.94/256,478.91 = 46,326.94/x
  3. Step 3: Cross multiply
    170,985.94x = 256,478.91 × 46,326.94
  4. Step 4: Simplify right side
    170,985.94x = 11,881,882,259.91
  5. Step 5: Solve for x
    x = 11,881,882,259.91/170,985.94
  6. Step 6: Final answer
    x = 69,490.41

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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.