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Finding the Fourth Proportional to 152,730.40, 229,153.20 and 73,914.40

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Solution

The fourth proportional to 152,730.40, 229,153.20 and 73,914.40 is: 110,899.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,730.40 : 229,153.20 = 73,914.40 : x
  2. Step 2: Convert to fraction form
    152,730.40/229,153.20 = 73,914.40/x
  3. Step 3: Cross multiply
    152,730.40x = 229,153.20 × 73,914.40
  4. Step 4: Simplify right side
    152,730.40x = 16,937,721,286.08
  5. Step 5: Solve for x
    x = 16,937,721,286.08/152,730.40
  6. Step 6: Final answer
    x = 110,899.48

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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.