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Finding the Fourth Proportional to 132,861,985.60, 199,292,978.40 and 132,861,985.60

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Solution

The fourth proportional to 132,861,985.60, 199,292,978.40 and 132,861,985.60 is: 199,292,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,861,985.60 : 199,292,978.40 = 132,861,985.60 : x
  2. Step 2: Convert to fraction form
    132,861,985.60/199,292,978.40 = 132,861,985.60/x
  3. Step 3: Cross multiply
    132,861,985.60x = 199,292,978.40 × 132,861,985.60
  4. Step 4: Simplify right side
    132,861,985.60x = 26,478,460,826,361,912
  5. Step 5: Solve for x
    x = 26,478,460,826,361,912/132,861,985.60
  6. Step 6: Final answer
    x = 199,292,978.40

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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.