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Finding the Fourth Proportional to 59,999.80, 89,942.10 and 46,665.40

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Solution

The fourth proportional to 59,999.80, 89,942.10 and 46,665.40 is: 69,953.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,999.80 : 89,942.10 = 46,665.40 : x
  2. Step 2: Convert to fraction form
    59,999.80/89,942.10 = 46,665.40/x
  3. Step 3: Cross multiply
    59,999.80x = 89,942.10 × 46,665.40
  4. Step 4: Simplify right side
    59,999.80x = 4,197,184,073.34
  5. Step 5: Solve for x
    x = 4,197,184,073.34/59,999.80
  6. Step 6: Final answer
    x = 69,953.30

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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.