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Finding the Fourth Proportional to 58,468.40, 87,616.20 and 49,655.60

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Solution

The fourth proportional to 58,468.40, 87,616.20 and 49,655.60 is: 74,410.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,468.40 : 87,616.20 = 49,655.60 : x
  2. Step 2: Convert to fraction form
    58,468.40/87,616.20 = 49,655.60/x
  3. Step 3: Cross multiply
    58,468.40x = 87,616.20 × 49,655.60
  4. Step 4: Simplify right side
    58,468.40x = 4,350,634,980.72
  5. Step 5: Solve for x
    x = 4,350,634,980.72/58,468.40
  6. Step 6: Final answer
    x = 74,410.02

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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.