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Finding the Fourth Proportional to 108,162.80, 149,263.08 and 60,416.80

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Solution

The fourth proportional to 108,162.80, 149,263.08 and 60,416.80 is: 83,374.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,162.80 : 149,263.08 = 60,416.80 : x
  2. Step 2: Convert to fraction form
    108,162.80/149,263.08 = 60,416.80/x
  3. Step 3: Cross multiply
    108,162.80x = 149,263.08 × 60,416.80
  4. Step 4: Simplify right side
    108,162.80x = 9,017,997,651.74
  5. Step 5: Solve for x
    x = 9,017,997,651.74/108,162.80
  6. Step 6: Final answer
    x = 83,374.30

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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.