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Finding the Fourth Proportional to 107,808.40, 161,712.60 and 48,710.80

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Solution

The fourth proportional to 107,808.40, 161,712.60 and 48,710.80 is: 73,066.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,808.40 : 161,712.60 = 48,710.80 : x
  2. Step 2: Convert to fraction form
    107,808.40/161,712.60 = 48,710.80/x
  3. Step 3: Cross multiply
    107,808.40x = 161,712.60 × 48,710.80
  4. Step 4: Simplify right side
    107,808.40x = 7,877,150,116.08
  5. Step 5: Solve for x
    x = 7,877,150,116.08/107,808.40
  6. Step 6: Final answer
    x = 73,066.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.