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Finding the Fourth Proportional to 108,869,911.60, 163,304,869.56 and 108,869,911.60

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Solution

The fourth proportional to 108,869,911.60, 163,304,869.56 and 108,869,911.60 is: 163,304,869.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,869,911.60 : 163,304,869.56 = 108,869,911.60 : x
  2. Step 2: Convert to fraction form
    108,869,911.60/163,304,869.56 = 108,869,911.60/x
  3. Step 3: Cross multiply
    108,869,911.60x = 163,304,869.56 × 108,869,911.60
  4. Step 4: Simplify right side
    108,869,911.60x = 17,778,986,712,846,730
  5. Step 5: Solve for x
    x = 17,778,986,712,846,730/108,869,911.60
  6. Step 6: Final answer
    x = 163,304,869.56

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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.