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Finding the Fourth Proportional to 333,783.99, 500,757.93 and 97,128.72

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Solution

The fourth proportional to 333,783.99, 500,757.93 and 97,128.72 is: 145,716.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,783.99 : 500,757.93 = 97,128.72 : x
  2. Step 2: Convert to fraction form
    333,783.99/500,757.93 = 97,128.72/x
  3. Step 3: Cross multiply
    333,783.99x = 500,757.93 × 97,128.72
  4. Step 4: Simplify right side
    333,783.99x = 48,637,976,770.75
  5. Step 5: Solve for x
    x = 48,637,976,770.75/333,783.99
  6. Step 6: Final answer
    x = 145,716.93

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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.