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Finding the Fourth Proportional to 70,787.58, 97,675.70 and 40,567.08

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Solution

The fourth proportional to 70,787.58, 97,675.70 and 40,567.08 is: 55,976.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,787.58 : 97,675.70 = 40,567.08 : x
  2. Step 2: Convert to fraction form
    70,787.58/97,675.70 = 40,567.08/x
  3. Step 3: Cross multiply
    70,787.58x = 97,675.70 × 40,567.08
  4. Step 4: Simplify right side
    70,787.58x = 3,962,417,935.96
  5. Step 5: Solve for x
    x = 3,962,417,935.96/70,787.58
  6. Step 6: Final answer
    x = 55,976.17

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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.