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Finding the Fourth Proportional to 188,953.75, 260,756.18 and 104,070.81

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Solution

The fourth proportional to 188,953.75, 260,756.18 and 104,070.81 is: 143,617.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,953.75 : 260,756.18 = 104,070.81 : x
  2. Step 2: Convert to fraction form
    188,953.75/260,756.18 = 104,070.81/x
  3. Step 3: Cross multiply
    188,953.75x = 260,756.18 × 104,070.81
  4. Step 4: Simplify right side
    188,953.75x = 27,137,106,865.11
  5. Step 5: Solve for x
    x = 27,137,106,865.11/188,953.75
  6. Step 6: Final answer
    x = 143,617.72

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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.