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Finding the Fourth Proportional to 68,347.40, 102,521.10 and 52,795.40

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Solution

The fourth proportional to 68,347.40, 102,521.10 and 52,795.40 is: 79,193.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,347.40 : 102,521.10 = 52,795.40 : x
  2. Step 2: Convert to fraction form
    68,347.40/102,521.10 = 52,795.40/x
  3. Step 3: Cross multiply
    68,347.40x = 102,521.10 × 52,795.40
  4. Step 4: Simplify right side
    68,347.40x = 5,412,642,482.94
  5. Step 5: Solve for x
    x = 5,412,642,482.94/68,347.40
  6. Step 6: Final answer
    x = 79,193.10

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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.