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Finding the Fourth Proportional to 78,570.96, 108,433.71 and 44,585.28

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Solution

The fourth proportional to 78,570.96, 108,433.71 and 44,585.28 is: 61,530.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,570.96 : 108,433.71 = 44,585.28 : x
  2. Step 2: Convert to fraction form
    78,570.96/108,433.71 = 44,585.28/x
  3. Step 3: Cross multiply
    78,570.96x = 108,433.71 × 44,585.28
  4. Step 4: Simplify right side
    78,570.96x = 4,834,547,321.79
  5. Step 5: Solve for x
    x = 4,834,547,321.79/78,570.96
  6. Step 6: Final answer
    x = 61,530.97

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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.