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Finding the Fourth Proportional to 477,680.50, 716,526.90 and 140,644.52

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Solution

The fourth proportional to 477,680.50, 716,526.90 and 140,644.52 is: 210,968.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,680.50 : 716,526.90 = 140,644.52 : x
  2. Step 2: Convert to fraction form
    477,680.50/716,526.90 = 140,644.52/x
  3. Step 3: Cross multiply
    477,680.50x = 716,526.90 × 140,644.52
  4. Step 4: Simplify right side
    477,680.50x = 100,775,581,917.59
  5. Step 5: Solve for x
    x = 100,775,581,917.59/477,680.50
  6. Step 6: Final answer
    x = 210,968.59

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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.