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Finding the Fourth Proportional to 133,788.61, 200,712.43 and 39,026.21

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Solution

The fourth proportional to 133,788.61, 200,712.43 and 39,026.21 is: 58,547.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,788.61 : 200,712.43 = 39,026.21 : x
  2. Step 2: Convert to fraction form
    133,788.61/200,712.43 = 39,026.21/x
  3. Step 3: Cross multiply
    133,788.61x = 200,712.43 × 39,026.21
  4. Step 4: Simplify right side
    133,788.61x = 7,833,044,488.01
  5. Step 5: Solve for x
    x = 7,833,044,488.01/133,788.61
  6. Step 6: Final answer
    x = 58,547.92

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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.