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Finding the Fourth Proportional to 183,428.60, 275,142.90 and 153,904.10

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Solution

The fourth proportional to 183,428.60, 275,142.90 and 153,904.10 is: 230,856.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,428.60 : 275,142.90 = 153,904.10 : x
  2. Step 2: Convert to fraction form
    183,428.60/275,142.90 = 153,904.10/x
  3. Step 3: Cross multiply
    183,428.60x = 275,142.90 × 153,904.10
  4. Step 4: Simplify right side
    183,428.60x = 42,345,620,395.89
  5. Step 5: Solve for x
    x = 42,345,620,395.89/183,428.60
  6. Step 6: Final answer
    x = 230,856.15

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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.