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Finding the Fourth Proportional to 64,170.40, 96,255.60 and 48,618.40

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Solution

The fourth proportional to 64,170.40, 96,255.60 and 48,618.40 is: 72,927.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,170.40 : 96,255.60 = 48,618.40 : x
  2. Step 2: Convert to fraction form
    64,170.40/96,255.60 = 48,618.40/x
  3. Step 3: Cross multiply
    64,170.40x = 96,255.60 × 48,618.40
  4. Step 4: Simplify right side
    64,170.40x = 4,679,793,263.04
  5. Step 5: Solve for x
    x = 4,679,793,263.04/64,170.40
  6. Step 6: Final answer
    x = 72,927.60

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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.