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Finding the Fourth Proportional to 168,291,295.60, 252,362,293.80 and 77,368,082.80

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Solution

The fourth proportional to 168,291,295.60, 252,362,293.80 and 77,368,082.80 is: 116,017,805.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,291,295.60 : 252,362,293.80 = 77,368,082.80 : x
  2. Step 2: Convert to fraction form
    168,291,295.60/252,362,293.80 = 77,368,082.80/x
  3. Step 3: Cross multiply
    168,291,295.60x = 252,362,293.80 × 77,368,082.80
  4. Step 4: Simplify right side
    168,291,295.60x = 19,524,786,842,316,328
  5. Step 5: Solve for x
    x = 19,524,786,842,316,328/168,291,295.60
  6. Step 6: Final answer
    x = 116,017,805.75

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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.