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Finding the Fourth Proportional to 307,468.50, 424,325.54 and 169,646.75

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Solution

The fourth proportional to 307,468.50, 424,325.54 and 169,646.75 is: 234,123.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,468.50 : 424,325.54 = 169,646.75 : x
  2. Step 2: Convert to fraction form
    307,468.50/424,325.54 = 169,646.75/x
  3. Step 3: Cross multiply
    307,468.50x = 424,325.54 × 169,646.75
  4. Step 4: Simplify right side
    307,468.50x = 71,985,447,954.76
  5. Step 5: Solve for x
    x = 71,985,447,954.76/307,468.50
  6. Step 6: Final answer
    x = 234,123.00

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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.