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Finding the Fourth Proportional to 106,487.70, 159,561.45 and 56,502.60

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Solution

The fourth proportional to 106,487.70, 159,561.45 and 56,502.60 is: 84,663.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,487.70 : 159,561.45 = 56,502.60 : x
  2. Step 2: Convert to fraction form
    106,487.70/159,561.45 = 56,502.60/x
  3. Step 3: Cross multiply
    106,487.70x = 159,561.45 × 56,502.60
  4. Step 4: Simplify right side
    106,487.70x = 9,015,636,784.77
  5. Step 5: Solve for x
    x = 9,015,636,784.77/106,487.70
  6. Step 6: Final answer
    x = 84,663.64

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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.