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Finding the Fourth Proportional to 292,615.56, 403,810.02 and 158,479.56

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Solution

The fourth proportional to 292,615.56, 403,810.02 and 158,479.56 is: 218,702.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,615.56 : 403,810.02 = 158,479.56 : x
  2. Step 2: Convert to fraction form
    292,615.56/403,810.02 = 158,479.56/x
  3. Step 3: Cross multiply
    292,615.56x = 403,810.02 × 158,479.56
  4. Step 4: Simplify right side
    292,615.56x = 63,995,634,293.19
  5. Step 5: Solve for x
    x = 63,995,634,293.19/292,615.56
  6. Step 6: Final answer
    x = 218,702.09

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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.