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Finding the Fourth Proportional to 115,876,642.60, 173,814,963.90 and 97,169,919.40

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Solution

The fourth proportional to 115,876,642.60, 173,814,963.90 and 97,169,919.40 is: 145,754,879.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,876,642.60 : 173,814,963.90 = 97,169,919.40 : x
  2. Step 2: Convert to fraction form
    115,876,642.60/173,814,963.90 = 97,169,919.40/x
  3. Step 3: Cross multiply
    115,876,642.60x = 173,814,963.90 × 97,169,919.40
  4. Step 4: Simplify right side
    115,876,642.60x = 16,889,586,032,676,912
  5. Step 5: Solve for x
    x = 16,889,586,032,676,912/115,876,642.60
  6. Step 6: Final answer
    x = 145,754,879.10

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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.