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Finding the Fourth Proportional to 192,763.82, 266,005 and 105,547.34

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Solution

The fourth proportional to 192,763.82, 266,005 and 105,547.34 is: 145,650.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,763.82 : 266,005 = 105,547.34 : x
  2. Step 2: Convert to fraction form
    192,763.82/266,005 = 105,547.34/x
  3. Step 3: Cross multiply
    192,763.82x = 266,005 × 105,547.34
  4. Step 4: Simplify right side
    192,763.82x = 28,076,120,176.70
  5. Step 5: Solve for x
    x = 28,076,120,176.70/192,763.82
  6. Step 6: Final answer
    x = 145,650.36

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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.