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Finding the Fourth Proportional to 66,088.60, 91,202.32 and 35,873.90

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Solution

The fourth proportional to 66,088.60, 91,202.32 and 35,873.90 is: 49,506.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,088.60 : 91,202.32 = 35,873.90 : x
  2. Step 2: Convert to fraction form
    66,088.60/91,202.32 = 35,873.90/x
  3. Step 3: Cross multiply
    66,088.60x = 91,202.32 × 35,873.90
  4. Step 4: Simplify right side
    66,088.60x = 3,271,782,907.45
  5. Step 5: Solve for x
    x = 3,271,782,907.45/66,088.60
  6. Step 6: Final answer
    x = 49,506.01

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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.