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Finding the Fourth Proportional to 68,595.71, 103,407.68 and 64,023.50

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Solution

The fourth proportional to 68,595.71, 103,407.68 and 64,023.50 is: 96,515.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,595.71 : 103,407.68 = 64,023.50 : x
  2. Step 2: Convert to fraction form
    68,595.71/103,407.68 = 64,023.50/x
  3. Step 3: Cross multiply
    68,595.71x = 103,407.68 × 64,023.50
  4. Step 4: Simplify right side
    68,595.71x = 6,620,522,019.06
  5. Step 5: Solve for x
    x = 6,620,522,019.06/68,595.71
  6. Step 6: Final answer
    x = 96,515.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.