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Finding the Fourth Proportional to 477,606.42, 716,383.71 and 145,156.50

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Solution

The fourth proportional to 477,606.42, 716,383.71 and 145,156.50 is: 217,726.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,606.42 : 716,383.71 = 145,156.50 : x
  2. Step 2: Convert to fraction form
    477,606.42/716,383.71 = 145,156.50/x
  3. Step 3: Cross multiply
    477,606.42x = 716,383.71 × 145,156.50
  4. Step 4: Simplify right side
    477,606.42x = 103,987,752,000.62
  5. Step 5: Solve for x
    x = 103,987,752,000.62/477,606.42
  6. Step 6: Final answer
    x = 217,726.87

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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.