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Finding the Fourth Proportional to 64,817.20, 93,722.50 and 64,817.20

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Solution

The fourth proportional to 64,817.20, 93,722.50 and 64,817.20 is: 93,722.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,817.20 : 93,722.50 = 64,817.20 : x
  2. Step 2: Convert to fraction form
    64,817.20/93,722.50 = 64,817.20/x
  3. Step 3: Cross multiply
    64,817.20x = 93,722.50 × 64,817.20
  4. Step 4: Simplify right side
    64,817.20x = 6,074,830,027
  5. Step 5: Solve for x
    x = 6,074,830,027/64,817.20
  6. Step 6: Final answer
    x = 93,722.50

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.