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Finding the Fourth Proportional to 230,907.52, 346,363.80 and 81,152.08

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Solution

The fourth proportional to 230,907.52, 346,363.80 and 81,152.08 is: 121,729.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,907.52 : 346,363.80 = 81,152.08 : x
  2. Step 2: Convert to fraction form
    230,907.52/346,363.80 = 81,152.08/x
  3. Step 3: Cross multiply
    230,907.52x = 346,363.80 × 81,152.08
  4. Step 4: Simplify right side
    230,907.52x = 28,108,142,806.70
  5. Step 5: Solve for x
    x = 28,108,142,806.70/230,907.52
  6. Step 6: Final answer
    x = 121,729.01

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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.