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Finding the Fourth Proportional to 67,848.99, 93,570.29 and 42,357.68

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Solution

The fourth proportional to 67,848.99, 93,570.29 and 42,357.68 is: 58,415.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,848.99 : 93,570.29 = 42,357.68 : x
  2. Step 2: Convert to fraction form
    67,848.99/93,570.29 = 42,357.68/x
  3. Step 3: Cross multiply
    67,848.99x = 93,570.29 × 42,357.68
  4. Step 4: Simplify right side
    67,848.99x = 3,963,420,757.75
  5. Step 5: Solve for x
    x = 3,963,420,757.75/67,848.99
  6. Step 6: Final answer
    x = 58,415.32

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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.