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Finding the Fourth Proportional to 586,139.28, 879,199.62 and 186,774.33

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Solution

The fourth proportional to 586,139.28, 879,199.62 and 186,774.33 is: 280,158.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,139.28 : 879,199.62 = 186,774.33 : x
  2. Step 2: Convert to fraction form
    586,139.28/879,199.62 = 186,774.33/x
  3. Step 3: Cross multiply
    586,139.28x = 879,199.62 × 186,774.33
  4. Step 4: Simplify right side
    586,139.28x = 164,211,919,961.76
  5. Step 5: Solve for x
    x = 164,211,919,961.76/586,139.28
  6. Step 6: Final answer
    x = 280,158.53

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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.