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Finding the Fourth Proportional to 68,295.40, 102,526.30 and 43,335.40

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Solution

The fourth proportional to 68,295.40, 102,526.30 and 43,335.40 is: 65,055.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,295.40 : 102,526.30 = 43,335.40 : x
  2. Step 2: Convert to fraction form
    68,295.40/102,526.30 = 43,335.40/x
  3. Step 3: Cross multiply
    68,295.40x = 102,526.30 × 43,335.40
  4. Step 4: Simplify right side
    68,295.40x = 4,443,018,221.02
  5. Step 5: Solve for x
    x = 4,443,018,221.02/68,295.40
  6. Step 6: Final answer
    x = 65,055.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.