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Finding the Fourth Proportional to 79,602.51, 119,307.65 and 35,178.87

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Solution

The fourth proportional to 79,602.51, 119,307.65 and 35,178.87 is: 52,725.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,602.51 : 119,307.65 = 35,178.87 : x
  2. Step 2: Convert to fraction form
    79,602.51/119,307.65 = 35,178.87/x
  3. Step 3: Cross multiply
    79,602.51x = 119,307.65 × 35,178.87
  4. Step 4: Simplify right side
    79,602.51x = 4,197,108,133.46
  5. Step 5: Solve for x
    x = 4,197,108,133.46/79,602.51
  6. Step 6: Final answer
    x = 52,725.83

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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.