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Finding the Fourth Proportional to 223,592.40, 335,345.81 and 86,815.50

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Solution

The fourth proportional to 223,592.40, 335,345.81 and 86,815.50 is: 130,206.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,592.40 : 335,345.81 = 86,815.50 : x
  2. Step 2: Convert to fraction form
    223,592.40/335,345.81 = 86,815.50/x
  3. Step 3: Cross multiply
    223,592.40x = 335,345.81 × 86,815.50
  4. Step 4: Simplify right side
    223,592.40x = 29,113,215,317.08
  5. Step 5: Solve for x
    x = 29,113,215,317.08/223,592.40
  6. Step 6: Final answer
    x = 130,206.64

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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.