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Finding the Fourth Proportional to 162,009.96, 242,992.48 and 43,688.40

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Solution

The fourth proportional to 162,009.96, 242,992.48 and 43,688.40 is: 65,526.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,009.96 : 242,992.48 = 43,688.40 : x
  2. Step 2: Convert to fraction form
    162,009.96/242,992.48 = 43,688.40/x
  3. Step 3: Cross multiply
    162,009.96x = 242,992.48 × 43,688.40
  4. Step 4: Simplify right side
    162,009.96x = 10,615,952,663.23
  5. Step 5: Solve for x
    x = 10,615,952,663.23/162,009.96
  6. Step 6: Final answer
    x = 65,526.54

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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.