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Finding the Fourth Proportional to 160,564.68, 240,996.47 and 81,737.91

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Solution

The fourth proportional to 160,564.68, 240,996.47 and 81,737.91 is: 122,682.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,564.68 : 240,996.47 = 81,737.91 : x
  2. Step 2: Convert to fraction form
    160,564.68/240,996.47 = 81,737.91/x
  3. Step 3: Cross multiply
    160,564.68x = 240,996.47 × 81,737.91
  4. Step 4: Simplify right side
    160,564.68x = 19,698,547,366.49
  5. Step 5: Solve for x
    x = 19,698,547,366.49/160,564.68
  6. Step 6: Final answer
    x = 122,682.94

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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.