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Finding the Fourth Proportional to 556,999.89, 835,543.98 and 157,643.16

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Solution

The fourth proportional to 556,999.89, 835,543.98 and 157,643.16 is: 236,477.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,999.89 : 835,543.98 = 157,643.16 : x
  2. Step 2: Convert to fraction form
    556,999.89/835,543.98 = 157,643.16/x
  3. Step 3: Cross multiply
    556,999.89x = 835,543.98 × 157,643.16
  4. Step 4: Simplify right side
    556,999.89x = 131,717,793,326.18
  5. Step 5: Solve for x
    x = 131,717,793,326.18/556,999.89
  6. Step 6: Final answer
    x = 236,477.23

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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.