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Finding the Fourth Proportional to 108,482.90, 149,689.13 and 60,738.26

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Solution

The fourth proportional to 108,482.90, 149,689.13 and 60,738.26 is: 83,809.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,482.90 : 149,689.13 = 60,738.26 : x
  2. Step 2: Convert to fraction form
    108,482.90/149,689.13 = 60,738.26/x
  3. Step 3: Cross multiply
    108,482.90x = 149,689.13 × 60,738.26
  4. Step 4: Simplify right side
    108,482.90x = 9,091,857,297.11
  5. Step 5: Solve for x
    x = 9,091,857,297.11/108,482.90
  6. Step 6: Final answer
    x = 83,809.13

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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.