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Finding the Fourth Proportional to 64,461,707.60, 96,692,561.40 and 63,789,861.20

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Solution

The fourth proportional to 64,461,707.60, 96,692,561.40 and 63,789,861.20 is: 95,684,791.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,461,707.60 : 96,692,561.40 = 63,789,861.20 : x
  2. Step 2: Convert to fraction form
    64,461,707.60/96,692,561.40 = 63,789,861.20/x
  3. Step 3: Cross multiply
    64,461,707.60x = 96,692,561.40 × 63,789,861.20
  4. Step 4: Simplify right side
    64,461,707.60x = 6,168,005,070,778,478
  5. Step 5: Solve for x
    x = 6,168,005,070,778,478/64,461,707.60
  6. Step 6: Final answer
    x = 95,684,791.80

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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.