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Finding the Fourth Proportional to 301,591.32, 452,402.55 and 76,953.72

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Solution

The fourth proportional to 301,591.32, 452,402.55 and 76,953.72 is: 115,434.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,591.32 : 452,402.55 = 76,953.72 : x
  2. Step 2: Convert to fraction form
    301,591.32/452,402.55 = 76,953.72/x
  3. Step 3: Cross multiply
    301,591.32x = 452,402.55 × 76,953.72
  4. Step 4: Simplify right side
    301,591.32x = 34,814,059,159.99
  5. Step 5: Solve for x
    x = 34,814,059,159.99/301,591.32
  6. Step 6: Final answer
    x = 115,434.55

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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.