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Finding the Fourth Proportional to 66,448,441.60, 99,672,662.40 and 65,552,646.40

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Solution

The fourth proportional to 66,448,441.60, 99,672,662.40 and 65,552,646.40 is: 98,328,969.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,448,441.60 : 99,672,662.40 = 65,552,646.40 : x
  2. Step 2: Convert to fraction form
    66,448,441.60/99,672,662.40 = 65,552,646.40/x
  3. Step 3: Cross multiply
    66,448,441.60x = 99,672,662.40 × 65,552,646.40
  4. Step 4: Simplify right side
    66,448,441.60x = 6,533,806,794,053,776
  5. Step 5: Solve for x
    x = 6,533,806,794,053,776/66,448,441.60
  6. Step 6: Final answer
    x = 98,328,969.60

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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.