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Finding the Fourth Proportional to 61,341.96, 84,649.72 and 34,117.90

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Solution

The fourth proportional to 61,341.96, 84,649.72 and 34,117.90 is: 47,081.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,341.96 : 84,649.72 = 34,117.90 : x
  2. Step 2: Convert to fraction form
    61,341.96/84,649.72 = 34,117.90/x
  3. Step 3: Cross multiply
    61,341.96x = 84,649.72 × 34,117.90
  4. Step 4: Simplify right side
    61,341.96x = 2,888,070,681.99
  5. Step 5: Solve for x
    x = 2,888,070,681.99/61,341.96
  6. Step 6: Final answer
    x = 47,081.49

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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.