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Finding the Fourth Proportional to 292,345.96, 438,534.42 and 92,681.92

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Solution

The fourth proportional to 292,345.96, 438,534.42 and 92,681.92 is: 139,027.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,345.96 : 438,534.42 = 92,681.92 : x
  2. Step 2: Convert to fraction form
    292,345.96/438,534.42 = 92,681.92/x
  3. Step 3: Cross multiply
    292,345.96x = 438,534.42 × 92,681.92
  4. Step 4: Simplify right side
    292,345.96x = 40,644,212,031.69
  5. Step 5: Solve for x
    x = 40,644,212,031.69/292,345.96
  6. Step 6: Final answer
    x = 139,027.79

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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.