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Finding the Fourth Proportional to 117,880.68, 162,696.42 and 75,437.76

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Solution

The fourth proportional to 117,880.68, 162,696.42 and 75,437.76 is: 104,117.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,880.68 : 162,696.42 = 75,437.76 : x
  2. Step 2: Convert to fraction form
    117,880.68/162,696.42 = 75,437.76/x
  3. Step 3: Cross multiply
    117,880.68x = 162,696.42 × 75,437.76
  4. Step 4: Simplify right side
    117,880.68x = 12,273,453,484.82
  5. Step 5: Solve for x
    x = 12,273,453,484.82/117,880.68
  6. Step 6: Final answer
    x = 104,117.60

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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.