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Finding the Fourth Proportional to 436,587.82, 654,881.76 and 121,044.74

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Solution

The fourth proportional to 436,587.82, 654,881.76 and 121,044.74 is: 181,567.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,587.82 : 654,881.76 = 121,044.74 : x
  2. Step 2: Convert to fraction form
    436,587.82/654,881.76 = 121,044.74/x
  3. Step 3: Cross multiply
    436,587.82x = 654,881.76 × 121,044.74
  4. Step 4: Simplify right side
    436,587.82x = 79,269,989,095.53
  5. Step 5: Solve for x
    x = 79,269,989,095.53/436,587.82
  6. Step 6: Final answer
    x = 181,567.11

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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.