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Finding the Fourth Proportional to 455,430.41, 683,144.17 and 123,006.41

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Solution

The fourth proportional to 455,430.41, 683,144.17 and 123,006.41 is: 184,509.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,430.41 : 683,144.17 = 123,006.41 : x
  2. Step 2: Convert to fraction form
    455,430.41/683,144.17 = 123,006.41/x
  3. Step 3: Cross multiply
    455,430.41x = 683,144.17 × 123,006.41
  4. Step 4: Simplify right side
    455,430.41x = 84,031,111,864.13
  5. Step 5: Solve for x
    x = 84,031,111,864.13/455,430.41
  6. Step 6: Final answer
    x = 184,509.22

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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.