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Finding the Fourth Proportional to 73,068, 109,607.40 and 53,470.32

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Solution

The fourth proportional to 73,068, 109,607.40 and 53,470.32 is: 80,209.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,068 : 109,607.40 = 53,470.32 : x
  2. Step 2: Convert to fraction form
    73,068/109,607.40 = 53,470.32/x
  3. Step 3: Cross multiply
    73,068x = 109,607.40 × 53,470.32
  4. Step 4: Simplify right side
    73,068x = 5,860,742,752.37
  5. Step 5: Solve for x
    x = 5,860,742,752.37/73,068
  6. Step 6: Final answer
    x = 80,209.43

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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.