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Finding the Fourth Proportional to 109,808.60, 151,536.12 and 59,507.60

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Solution

The fourth proportional to 109,808.60, 151,536.12 and 59,507.60 is: 82,120.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,808.60 : 151,536.12 = 59,507.60 : x
  2. Step 2: Convert to fraction form
    109,808.60/151,536.12 = 59,507.60/x
  3. Step 3: Cross multiply
    109,808.60x = 151,536.12 × 59,507.60
  4. Step 4: Simplify right side
    109,808.60x = 9,017,550,814.51
  5. Step 5: Solve for x
    x = 9,017,550,814.51/109,808.60
  6. Step 6: Final answer
    x = 82,120.62

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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.