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Finding the Fourth Proportional to 79,547.85, 109,765.47 and 49,322.15

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Solution

The fourth proportional to 79,547.85, 109,765.47 and 49,322.15 is: 68,058.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,547.85 : 109,765.47 = 49,322.15 : x
  2. Step 2: Convert to fraction form
    79,547.85/109,765.47 = 49,322.15/x
  3. Step 3: Cross multiply
    79,547.85x = 109,765.47 × 49,322.15
  4. Step 4: Simplify right side
    79,547.85x = 5,413,868,427.33
  5. Step 5: Solve for x
    x = 5,413,868,427.33/79,547.85
  6. Step 6: Final answer
    x = 68,058.01

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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.