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Finding the Fourth Proportional to 292,749.76, 403,995.04 and 158,613.76

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Solution

The fourth proportional to 292,749.76, 403,995.04 and 158,613.76 is: 218,887.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,749.76 : 403,995.04 = 158,613.76 : x
  2. Step 2: Convert to fraction form
    292,749.76/403,995.04 = 158,613.76/x
  3. Step 3: Cross multiply
    292,749.76x = 403,995.04 × 158,613.76
  4. Step 4: Simplify right side
    292,749.76x = 64,079,172,315.75
  5. Step 5: Solve for x
    x = 64,079,172,315.75/292,749.76
  6. Step 6: Final answer
    x = 218,887.19

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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.