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Finding the Fourth Proportional to 346,812.60, 520,316.10 and 169,325.40

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Solution

The fourth proportional to 346,812.60, 520,316.10 and 169,325.40 is: 254,035.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,812.60 : 520,316.10 = 169,325.40 : x
  2. Step 2: Convert to fraction form
    346,812.60/520,316.10 = 169,325.40/x
  3. Step 3: Cross multiply
    346,812.60x = 520,316.10 × 169,325.40
  4. Step 4: Simplify right side
    346,812.60x = 88,102,731,758.94
  5. Step 5: Solve for x
    x = 88,102,731,758.94/346,812.60
  6. Step 6: Final answer
    x = 254,035.56

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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.