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Finding the Fourth Proportional to 65,664,133.60, 98,496,200.40 and 64,320,440.80

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Solution

The fourth proportional to 65,664,133.60, 98,496,200.40 and 64,320,440.80 is: 96,480,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,664,133.60 : 98,496,200.40 = 64,320,440.80 : x
  2. Step 2: Convert to fraction form
    65,664,133.60/98,496,200.40 = 64,320,440.80/x
  3. Step 3: Cross multiply
    65,664,133.60x = 98,496,200.40 × 64,320,440.80
  4. Step 4: Simplify right side
    65,664,133.60x = 6,335,319,026,853,136
  5. Step 5: Solve for x
    x = 6,335,319,026,853,136/65,664,133.60
  6. Step 6: Final answer
    x = 96,480,661.20

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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.