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Finding the Fourth Proportional to 106,488, 159,837.76 and 56,568.48

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Solution

The fourth proportional to 106,488, 159,837.76 and 56,568.48 is: 84,908.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,488 : 159,837.76 = 56,568.48 : x
  2. Step 2: Convert to fraction form
    106,488/159,837.76 = 56,568.48/x
  3. Step 3: Cross multiply
    106,488x = 159,837.76 × 56,568.48
  4. Step 4: Simplify right side
    106,488x = 9,041,779,129.80
  5. Step 5: Solve for x
    x = 9,041,779,129.80/106,488
  6. Step 6: Final answer
    x = 84,908.90

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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.