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Finding the Fourth Proportional to 292,712.51, 403,795.33 and 195,920.42

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Solution

The fourth proportional to 292,712.51, 403,795.33 and 195,920.42 is: 270,271.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,712.51 : 403,795.33 = 195,920.42 : x
  2. Step 2: Convert to fraction form
    292,712.51/403,795.33 = 195,920.42/x
  3. Step 3: Cross multiply
    292,712.51x = 403,795.33 × 195,920.42
  4. Step 4: Simplify right side
    292,712.51x = 79,111,748,138.86
  5. Step 5: Solve for x
    x = 79,111,748,138.86/292,712.51
  6. Step 6: Final answer
    x = 270,271.15

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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.