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Finding the Fourth Proportional to 58,173.88, 87,078.48 and 40,056.40

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Solution

The fourth proportional to 58,173.88, 87,078.48 and 40,056.40 is: 59,959.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,173.88 : 87,078.48 = 40,056.40 : x
  2. Step 2: Convert to fraction form
    58,173.88/87,078.48 = 40,056.40/x
  3. Step 3: Cross multiply
    58,173.88x = 87,078.48 × 40,056.40
  4. Step 4: Simplify right side
    58,173.88x = 3,488,050,426.27
  5. Step 5: Solve for x
    x = 3,488,050,426.27/58,173.88
  6. Step 6: Final answer
    x = 59,959.05

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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.