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Finding the Fourth Proportional to 117,005.70, 175,508.55 and 89,012.10

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Solution

The fourth proportional to 117,005.70, 175,508.55 and 89,012.10 is: 133,518.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,005.70 : 175,508.55 = 89,012.10 : x
  2. Step 2: Convert to fraction form
    117,005.70/175,508.55 = 89,012.10/x
  3. Step 3: Cross multiply
    117,005.70x = 175,508.55 × 89,012.10
  4. Step 4: Simplify right side
    117,005.70x = 15,622,384,603.46
  5. Step 5: Solve for x
    x = 15,622,384,603.46/117,005.70
  6. Step 6: Final answer
    x = 133,518.15

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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.