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Finding the Fourth Proportional to 65,364.64, 90,202.62 and 37,070.53

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Solution

The fourth proportional to 65,364.64, 90,202.62 and 37,070.53 is: 51,157.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,364.64 : 90,202.62 = 37,070.53 : x
  2. Step 2: Convert to fraction form
    65,364.64/90,202.62 = 37,070.53/x
  3. Step 3: Cross multiply
    65,364.64x = 90,202.62 × 37,070.53
  4. Step 4: Simplify right side
    65,364.64x = 3,343,858,930.79
  5. Step 5: Solve for x
    x = 3,343,858,930.79/65,364.64
  6. Step 6: Final answer
    x = 51,157.00

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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.