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Finding the Fourth Proportional to 64,360.10, 96,540.15 and 43,364.90

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Solution

The fourth proportional to 64,360.10, 96,540.15 and 43,364.90 is: 65,047.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,360.10 : 96,540.15 = 43,364.90 : x
  2. Step 2: Convert to fraction form
    64,360.10/96,540.15 = 43,364.90/x
  3. Step 3: Cross multiply
    64,360.10x = 96,540.15 × 43,364.90
  4. Step 4: Simplify right side
    64,360.10x = 4,186,453,950.74
  5. Step 5: Solve for x
    x = 4,186,453,950.74/64,360.10
  6. Step 6: Final answer
    x = 65,047.35

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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.