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Finding the Fourth Proportional to 59,971.60, 90,036.60 and 48,131.92

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Solution

The fourth proportional to 59,971.60, 90,036.60 and 48,131.92 is: 72,261.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,971.60 : 90,036.60 = 48,131.92 : x
  2. Step 2: Convert to fraction form
    59,971.60/90,036.60 = 48,131.92/x
  3. Step 3: Cross multiply
    59,971.60x = 90,036.60 × 48,131.92
  4. Step 4: Simplify right side
    59,971.60x = 4,333,634,428.27
  5. Step 5: Solve for x
    x = 4,333,634,428.27/59,971.60
  6. Step 6: Final answer
    x = 72,261.44

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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.