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Finding the Fourth Proportional to 64,103.60, 96,025.80 and 43,108.40

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Solution

The fourth proportional to 64,103.60, 96,025.80 and 43,108.40 is: 64,575.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,103.60 : 96,025.80 = 43,108.40 : x
  2. Step 2: Convert to fraction form
    64,103.60/96,025.80 = 43,108.40/x
  3. Step 3: Cross multiply
    64,103.60x = 96,025.80 × 43,108.40
  4. Step 4: Simplify right side
    64,103.60x = 4,139,518,596.72
  5. Step 5: Solve for x
    x = 4,139,518,596.72/64,103.60
  6. Step 6: Final answer
    x = 64,575.45

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1.5x scale

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.