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Finding the Fourth Proportional to 210,706.71, 291,009.97 and 194,763.48

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Solution

The fourth proportional to 210,706.71, 291,009.97 and 194,763.48 is: 268,990.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,706.71 : 291,009.97 = 194,763.48 : x
  2. Step 2: Convert to fraction form
    210,706.71/291,009.97 = 194,763.48/x
  3. Step 3: Cross multiply
    210,706.71x = 291,009.97 × 194,763.48
  4. Step 4: Simplify right side
    210,706.71x = 56,678,114,471.90
  5. Step 5: Solve for x
    x = 56,678,114,471.90/210,706.71
  6. Step 6: Final answer
    x = 268,990.55

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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.