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Finding the Fourth Proportional to 53,154,139.60, 79,731,209.40 and 53,154,139.60

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Solution

The fourth proportional to 53,154,139.60, 79,731,209.40 and 53,154,139.60 is: 79,731,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,154,139.60 : 79,731,209.40 = 53,154,139.60 : x
  2. Step 2: Convert to fraction form
    53,154,139.60/79,731,209.40 = 53,154,139.60/x
  3. Step 3: Cross multiply
    53,154,139.60x = 79,731,209.40 × 53,154,139.60
  4. Step 4: Simplify right side
    53,154,139.60x = 4,238,043,834,924,432.50
  5. Step 5: Solve for x
    x = 4,238,043,834,924,432.50/53,154,139.60
  6. Step 6: Final answer
    x = 79,731,209.40

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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.