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Finding the Fourth Proportional to 159,807,985.60, 239,711,978.40 and 108,151,920.40

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Solution

The fourth proportional to 159,807,985.60, 239,711,978.40 and 108,151,920.40 is: 162,227,880.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,807,985.60 : 239,711,978.40 = 108,151,920.40 : x
  2. Step 2: Convert to fraction form
    159,807,985.60/239,711,978.40 = 108,151,920.40/x
  3. Step 3: Cross multiply
    159,807,985.60x = 239,711,978.40 × 108,151,920.40
  4. Step 4: Simplify right side
    159,807,985.60x = 25,925,310,806,843,320
  5. Step 5: Solve for x
    x = 25,925,310,806,843,320/159,807,985.60
  6. Step 6: Final answer
    x = 162,227,880.60

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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.