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Finding the Fourth Proportional to 129,030,490.60, 193,545,739.10 and 129,030,490.60

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Solution

The fourth proportional to 129,030,490.60, 193,545,739.10 and 129,030,490.60 is: 193,545,739.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,030,490.60 : 193,545,739.10 = 129,030,490.60 : x
  2. Step 2: Convert to fraction form
    129,030,490.60/193,545,739.10 = 129,030,490.60/x
  3. Step 3: Cross multiply
    129,030,490.60x = 193,545,739.10 × 129,030,490.60
  4. Step 4: Simplify right side
    129,030,490.60x = 24,973,301,669,612,600
  5. Step 5: Solve for x
    x = 24,973,301,669,612,600/129,030,490.60
  6. Step 6: Final answer
    x = 193,545,739.10

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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.