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Finding the Fourth Proportional to 59,989.86, 90,045.45 and 35,077.50

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Solution

The fourth proportional to 59,989.86, 90,045.45 and 35,077.50 is: 52,651.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,989.86 : 90,045.45 = 35,077.50 : x
  2. Step 2: Convert to fraction form
    59,989.86/90,045.45 = 35,077.50/x
  3. Step 3: Cross multiply
    59,989.86x = 90,045.45 × 35,077.50
  4. Step 4: Simplify right side
    59,989.86x = 3,158,569,272.38
  5. Step 5: Solve for x
    x = 3,158,569,272.38/59,989.86
  6. Step 6: Final answer
    x = 52,651.72

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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.