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Finding the Fourth Proportional to 318,970.10, 440,242.49 and 183,095.89

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Solution

The fourth proportional to 318,970.10, 440,242.49 and 183,095.89 is: 252,708.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,970.10 : 440,242.49 = 183,095.89 : x
  2. Step 2: Convert to fraction form
    318,970.10/440,242.49 = 183,095.89/x
  3. Step 3: Cross multiply
    318,970.10x = 440,242.49 × 183,095.89
  4. Step 4: Simplify right side
    318,970.10x = 80,606,592,355.86
  5. Step 5: Solve for x
    x = 80,606,592,355.86/318,970.10
  6. Step 6: Final answer
    x = 252,708.93

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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.