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Finding the Fourth Proportional to 113,377.60, 170,066.40 and 43,259.20

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Solution

The fourth proportional to 113,377.60, 170,066.40 and 43,259.20 is: 64,888.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,377.60 : 170,066.40 = 43,259.20 : x
  2. Step 2: Convert to fraction form
    113,377.60/170,066.40 = 43,259.20/x
  3. Step 3: Cross multiply
    113,377.60x = 170,066.40 × 43,259.20
  4. Step 4: Simplify right side
    113,377.60x = 7,356,936,410.88
  5. Step 5: Solve for x
    x = 7,356,936,410.88/113,377.60
  6. Step 6: Final answer
    x = 64,888.80

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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.