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Finding the Fourth Proportional to 52,043.30, 72,705.10 and 52,043.30

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Solution

The fourth proportional to 52,043.30, 72,705.10 and 52,043.30 is: 72,705.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,043.30 : 72,705.10 = 52,043.30 : x
  2. Step 2: Convert to fraction form
    52,043.30/72,705.10 = 52,043.30/x
  3. Step 3: Cross multiply
    52,043.30x = 72,705.10 × 52,043.30
  4. Step 4: Simplify right side
    52,043.30x = 3,783,813,330.83
  5. Step 5: Solve for x
    x = 3,783,813,330.83/52,043.30
  6. Step 6: Final answer
    x = 72,705.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.