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Finding the Fourth Proportional to 317,359,859.60, 476,039,789.40 and 112,894,605.20

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Solution

The fourth proportional to 317,359,859.60, 476,039,789.40 and 112,894,605.20 is: 169,341,907.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,359,859.60 : 476,039,789.40 = 112,894,605.20 : x
  2. Step 2: Convert to fraction form
    317,359,859.60/476,039,789.40 = 112,894,605.20/x
  3. Step 3: Cross multiply
    317,359,859.60x = 476,039,789.40 × 112,894,605.20
  4. Step 4: Simplify right side
    317,359,859.60x = 53,742,324,083,804,144
  5. Step 5: Solve for x
    x = 53,742,324,083,804,144/317,359,859.60
  6. Step 6: Final answer
    x = 169,341,907.80

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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.