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Finding the Fourth Proportional to 108,348.84, 149,537.34 and 65,899.17

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Solution

The fourth proportional to 108,348.84, 149,537.34 and 65,899.17 is: 90,950.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,348.84 : 149,537.34 = 65,899.17 : x
  2. Step 2: Convert to fraction form
    108,348.84/149,537.34 = 65,899.17/x
  3. Step 3: Cross multiply
    108,348.84x = 149,537.34 × 65,899.17
  4. Step 4: Simplify right side
    108,348.84x = 9,854,386,590.01
  5. Step 5: Solve for x
    x = 9,854,386,590.01/108,348.84
  6. Step 6: Final answer
    x = 90,950.55

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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.