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Finding the Fourth Proportional to 556,999.39, 835,543.23 and 157,642.66

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Solution

The fourth proportional to 556,999.39, 835,543.23 and 157,642.66 is: 236,476.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,999.39 : 835,543.23 = 157,642.66 : x
  2. Step 2: Convert to fraction form
    556,999.39/835,543.23 = 157,642.66/x
  3. Step 3: Cross multiply
    556,999.39x = 835,543.23 × 157,642.66
  4. Step 4: Simplify right side
    556,999.39x = 131,717,257,322.19
  5. Step 5: Solve for x
    x = 131,717,257,322.19/556,999.39
  6. Step 6: Final answer
    x = 236,476.48

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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.