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Finding the Fourth Proportional to 59,141.40, 88,712.10 and 48,643.80

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Solution

The fourth proportional to 59,141.40, 88,712.10 and 48,643.80 is: 72,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,141.40 : 88,712.10 = 48,643.80 : x
  2. Step 2: Convert to fraction form
    59,141.40/88,712.10 = 48,643.80/x
  3. Step 3: Cross multiply
    59,141.40x = 88,712.10 × 48,643.80
  4. Step 4: Simplify right side
    59,141.40x = 4,315,293,649.98
  5. Step 5: Solve for x
    x = 4,315,293,649.98/59,141.40
  6. Step 6: Final answer
    x = 72,965.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.