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Finding the Fourth Proportional to 124,807,569.60, 186,987,405.60 and 106,891,665.60

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Solution

The fourth proportional to 124,807,569.60, 186,987,405.60 and 106,891,665.60 is: 160,145,697.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,807,569.60 : 186,987,405.60 = 106,891,665.60 : x
  2. Step 2: Convert to fraction form
    124,807,569.60/186,987,405.60 = 106,891,665.60/x
  3. Step 3: Cross multiply
    124,807,569.60x = 186,987,405.60 × 106,891,665.60
  4. Step 4: Simplify right side
    124,807,569.60x = 19,987,395,230,806,764
  5. Step 5: Solve for x
    x = 19,987,395,230,806,764/124,807,569.60
  6. Step 6: Final answer
    x = 160,145,697.05

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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.