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Finding the Fourth Proportional to 69,068.36, 103,089.95 and 59,539.88

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Solution

The fourth proportional to 69,068.36, 103,089.95 and 59,539.88 is: 88,867.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,068.36 : 103,089.95 = 59,539.88 : x
  2. Step 2: Convert to fraction form
    69,068.36/103,089.95 = 59,539.88/x
  3. Step 3: Cross multiply
    69,068.36x = 103,089.95 × 59,539.88
  4. Step 4: Simplify right side
    69,068.36x = 6,137,963,252.21
  5. Step 5: Solve for x
    x = 6,137,963,252.21/69,068.36
  6. Step 6: Final answer
    x = 88,867.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.