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Finding the Fourth Proportional to 116,285.25, 160,491.17 and 70,989.58

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Solution

The fourth proportional to 116,285.25, 160,491.17 and 70,989.58 is: 97,976.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,285.25 : 160,491.17 = 70,989.58 : x
  2. Step 2: Convert to fraction form
    116,285.25/160,491.17 = 70,989.58/x
  3. Step 3: Cross multiply
    116,285.25x = 160,491.17 × 70,989.58
  4. Step 4: Simplify right side
    116,285.25x = 11,393,201,130.10
  5. Step 5: Solve for x
    x = 11,393,201,130.10/116,285.25
  6. Step 6: Final answer
    x = 97,976.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.