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Finding the Fourth Proportional to 106,391.67, 146,820.47 and 58,645.82

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Solution

The fourth proportional to 106,391.67, 146,820.47 and 58,645.82 is: 80,931.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,391.67 : 146,820.47 = 58,645.82 : x
  2. Step 2: Convert to fraction form
    106,391.67/146,820.47 = 58,645.82/x
  3. Step 3: Cross multiply
    106,391.67x = 146,820.47 × 58,645.82
  4. Step 4: Simplify right side
    106,391.67x = 8,610,406,305.36
  5. Step 5: Solve for x
    x = 8,610,406,305.36/106,391.67
  6. Step 6: Final answer
    x = 80,931.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.