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Finding the Fourth Proportional to 108,705.84, 150,019.80 and 62,771.52

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Solution

The fourth proportional to 108,705.84, 150,019.80 and 62,771.52 is: 86,628.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,705.84 : 150,019.80 = 62,771.52 : x
  2. Step 2: Convert to fraction form
    108,705.84/150,019.80 = 62,771.52/x
  3. Step 3: Cross multiply
    108,705.84x = 150,019.80 × 62,771.52
  4. Step 4: Simplify right side
    108,705.84x = 9,416,970,876.10
  5. Step 5: Solve for x
    x = 9,416,970,876.10/108,705.84
  6. Step 6: Final answer
    x = 86,628.01

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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.