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Finding the Fourth Proportional to 64,235.60, 96,223.80 and 36,501.20

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Solution

The fourth proportional to 64,235.60, 96,223.80 and 36,501.20 is: 54,678.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,235.60 : 96,223.80 = 36,501.20 : x
  2. Step 2: Convert to fraction form
    64,235.60/96,223.80 = 36,501.20/x
  3. Step 3: Cross multiply
    64,235.60x = 96,223.80 × 36,501.20
  4. Step 4: Simplify right side
    64,235.60x = 3,512,284,168.56
  5. Step 5: Solve for x
    x = 3,512,284,168.56/64,235.60
  6. Step 6: Final answer
    x = 54,678.16

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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.