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Finding the Fourth Proportional to 292,239.96, 438,355.08 and 92,559.96

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Solution

The fourth proportional to 292,239.96, 438,355.08 and 92,559.96 is: 138,838.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,239.96 : 438,355.08 = 92,559.96 : x
  2. Step 2: Convert to fraction form
    292,239.96/438,355.08 = 92,559.96/x
  3. Step 3: Cross multiply
    292,239.96x = 438,355.08 × 92,559.96
  4. Step 4: Simplify right side
    292,239.96x = 40,574,128,670.60
  5. Step 5: Solve for x
    x = 40,574,128,670.60/292,239.96
  6. Step 6: Final answer
    x = 138,838.40

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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.