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Finding the Fourth Proportional to 117,922,686.40, 176,884,029.60 and 36,041,406.40

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Solution

The fourth proportional to 117,922,686.40, 176,884,029.60 and 36,041,406.40 is: 54,062,109.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,922,686.40 : 176,884,029.60 = 36,041,406.40 : x
  2. Step 2: Convert to fraction form
    117,922,686.40/176,884,029.60 = 36,041,406.40/x
  3. Step 3: Cross multiply
    117,922,686.40x = 176,884,029.60 × 36,041,406.40
  4. Step 4: Simplify right side
    117,922,686.40x = 6,375,149,196,483,229
  5. Step 5: Solve for x
    x = 6,375,149,196,483,229/117,922,686.40
  6. Step 6: Final answer
    x = 54,062,109.60

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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.