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Finding the Fourth Proportional to 68,560.40, 103,045.40 and 59,549.20

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Solution

The fourth proportional to 68,560.40, 103,045.40 and 59,549.20 is: 89,501.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,560.40 : 103,045.40 = 59,549.20 : x
  2. Step 2: Convert to fraction form
    68,560.40/103,045.40 = 59,549.20/x
  3. Step 3: Cross multiply
    68,560.40x = 103,045.40 × 59,549.20
  4. Step 4: Simplify right side
    68,560.40x = 6,136,271,133.68
  5. Step 5: Solve for x
    x = 6,136,271,133.68/68,560.40
  6. Step 6: Final answer
    x = 89,501.68

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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.