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Finding the Fourth Proportional to 556,695.10, 835,087.74 and 157,339.18

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Solution

The fourth proportional to 556,695.10, 835,087.74 and 157,339.18 is: 236,021.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,695.10 : 835,087.74 = 157,339.18 : x
  2. Step 2: Convert to fraction form
    556,695.10/835,087.74 = 157,339.18/x
  3. Step 3: Cross multiply
    556,695.10x = 835,087.74 × 157,339.18
  4. Step 4: Simplify right side
    556,695.10x = 131,392,020,239.65
  5. Step 5: Solve for x
    x = 131,392,020,239.65/556,695.10
  6. Step 6: Final answer
    x = 236,021.51

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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.