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Finding the Fourth Proportional to 70,655.16, 97,480.01 and 43,787.87

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Solution

The fourth proportional to 70,655.16, 97,480.01 and 43,787.87 is: 60,412.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,655.16 : 97,480.01 = 43,787.87 : x
  2. Step 2: Convert to fraction form
    70,655.16/97,480.01 = 43,787.87/x
  3. Step 3: Cross multiply
    70,655.16x = 97,480.01 × 43,787.87
  4. Step 4: Simplify right side
    70,655.16x = 4,268,441,299.14
  5. Step 5: Solve for x
    x = 4,268,441,299.14/70,655.16
  6. Step 6: Final answer
    x = 60,412.31

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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.