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Finding the Fourth Proportional to 586,145.43, 879,095.12 and 165,322.89

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Solution

The fourth proportional to 586,145.43, 879,095.12 and 165,322.89 is: 247,949.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,145.43 : 879,095.12 = 165,322.89 : x
  2. Step 2: Convert to fraction form
    586,145.43/879,095.12 = 165,322.89/x
  3. Step 3: Cross multiply
    586,145.43x = 879,095.12 × 165,322.89
  4. Step 4: Simplify right side
    586,145.43x = 145,334,546,236.60
  5. Step 5: Solve for x
    x = 145,334,546,236.60/586,145.43
  6. Step 6: Final answer
    x = 247,949.64

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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.