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Finding the Fourth Proportional to 133,805.16, 200,726.10 and 77,671.62

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Solution

The fourth proportional to 133,805.16, 200,726.10 and 77,671.62 is: 116,518.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,805.16 : 200,726.10 = 77,671.62 : x
  2. Step 2: Convert to fraction form
    133,805.16/200,726.10 = 77,671.62/x
  3. Step 3: Cross multiply
    133,805.16x = 200,726.10 × 77,671.62
  4. Step 4: Simplify right side
    133,805.16x = 15,590,721,363.28
  5. Step 5: Solve for x
    x = 15,590,721,363.28/133,805.16
  6. Step 6: Final answer
    x = 116,518.09

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1.5x scale

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.