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Finding the Fourth Proportional to 161,688.69, 242,644.01 and 56,507.76

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Solution

The fourth proportional to 161,688.69, 242,644.01 and 56,507.76 is: 84,800.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,688.69 : 242,644.01 = 56,507.76 : x
  2. Step 2: Convert to fraction form
    161,688.69/242,644.01 = 56,507.76/x
  3. Step 3: Cross multiply
    161,688.69x = 242,644.01 × 56,507.76
  4. Step 4: Simplify right side
    161,688.69x = 13,711,269,199.98
  5. Step 5: Solve for x
    x = 13,711,269,199.98/161,688.69
  6. Step 6: Final answer
    x = 84,800.42

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1.5x scale

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.