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Finding the Fourth Proportional to 499,795.86, 749,693.79 and 144,810.12

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Solution

The fourth proportional to 499,795.86, 749,693.79 and 144,810.12 is: 217,215.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,795.86 : 749,693.79 = 144,810.12 : x
  2. Step 2: Convert to fraction form
    499,795.86/749,693.79 = 144,810.12/x
  3. Step 3: Cross multiply
    499,795.86x = 749,693.79 × 144,810.12
  4. Step 4: Simplify right side
    499,795.86x = 108,563,247,693.16
  5. Step 5: Solve for x
    x = 108,563,247,693.16/499,795.86
  6. Step 6: Final answer
    x = 217,215.18

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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.