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Finding the Fourth Proportional to 101,070.59, 139,476.29 and 55,750.48

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Solution

The fourth proportional to 101,070.59, 139,476.29 and 55,750.48 is: 76,935.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,070.59 : 139,476.29 = 55,750.48 : x
  2. Step 2: Convert to fraction form
    101,070.59/139,476.29 = 55,750.48/x
  3. Step 3: Cross multiply
    101,070.59x = 139,476.29 × 55,750.48
  4. Step 4: Simplify right side
    101,070.59x = 7,775,869,488.68
  5. Step 5: Solve for x
    x = 7,775,869,488.68/101,070.59
  6. Step 6: Final answer
    x = 76,935.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.