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Finding the Fourth Proportional to 64,745,903.60, 97,118,855.40 and 61,759,919.60

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Solution

The fourth proportional to 64,745,903.60, 97,118,855.40 and 61,759,919.60 is: 92,639,879.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,745,903.60 : 97,118,855.40 = 61,759,919.60 : x
  2. Step 2: Convert to fraction form
    64,745,903.60/97,118,855.40 = 61,759,919.60/x
  3. Step 3: Cross multiply
    64,745,903.60x = 97,118,855.40 × 61,759,919.60
  4. Step 4: Simplify right side
    64,745,903.60x = 5,998,052,701,148,026
  5. Step 5: Solve for x
    x = 5,998,052,701,148,026/64,745,903.60
  6. Step 6: Final answer
    x = 92,639,879.40

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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.