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Finding the Fourth Proportional to 52,358.16, 78,490.72 and 19,072.02

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Solution

The fourth proportional to 52,358.16, 78,490.72 and 19,072.02 is: 28,591.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,358.16 : 78,490.72 = 19,072.02 : x
  2. Step 2: Convert to fraction form
    52,358.16/78,490.72 = 19,072.02/x
  3. Step 3: Cross multiply
    52,358.16x = 78,490.72 × 19,072.02
  4. Step 4: Simplify right side
    52,358.16x = 1,496,976,581.65
  5. Step 5: Solve for x
    x = 1,496,976,581.65/52,358.16
  6. Step 6: Final answer
    x = 28,591.08

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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.