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Finding the Fourth Proportional to 59,686.80, 89,384.40 and 44,815.20

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Solution

The fourth proportional to 59,686.80, 89,384.40 and 44,815.20 is: 67,113.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,686.80 : 89,384.40 = 44,815.20 : x
  2. Step 2: Convert to fraction form
    59,686.80/89,384.40 = 44,815.20/x
  3. Step 3: Cross multiply
    59,686.80x = 89,384.40 × 44,815.20
  4. Step 4: Simplify right side
    59,686.80x = 4,005,779,762.88
  5. Step 5: Solve for x
    x = 4,005,779,762.88/59,686.80
  6. Step 6: Final answer
    x = 67,113.33

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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.