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Finding the Fourth Proportional to 371,272.16, 556,908.24 and 90,786.08

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Solution

The fourth proportional to 371,272.16, 556,908.24 and 90,786.08 is: 136,179.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,272.16 : 556,908.24 = 90,786.08 : x
  2. Step 2: Convert to fraction form
    371,272.16/556,908.24 = 90,786.08/x
  3. Step 3: Cross multiply
    371,272.16x = 556,908.24 × 90,786.08
  4. Step 4: Simplify right side
    371,272.16x = 50,559,516,029.30
  5. Step 5: Solve for x
    x = 50,559,516,029.30/371,272.16
  6. Step 6: Final answer
    x = 136,179.12

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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.