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Finding the Fourth Proportional to 242,656.56, 364,036.68 and 84,890.16

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Solution

The fourth proportional to 242,656.56, 364,036.68 and 84,890.16 is: 127,353.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,656.56 : 364,036.68 = 84,890.16 : x
  2. Step 2: Convert to fraction form
    242,656.56/364,036.68 = 84,890.16/x
  3. Step 3: Cross multiply
    242,656.56x = 364,036.68 × 84,890.16
  4. Step 4: Simplify right side
    242,656.56x = 30,903,132,011.07
  5. Step 5: Solve for x
    x = 30,903,132,011.07/242,656.56
  6. Step 6: Final answer
    x = 127,353.38

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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.