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Finding the Fourth Proportional to 51,819,465.21, 77,740,159.02 and 19,471,648.01

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Solution

The fourth proportional to 51,819,465.21, 77,740,159.02 and 19,471,648.01 is: 29,211,590.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,819,465.21 : 77,740,159.02 = 19,471,648.01 : x
  2. Step 2: Convert to fraction form
    51,819,465.21/77,740,159.02 = 19,471,648.01/x
  3. Step 3: Cross multiply
    51,819,465.21x = 77,740,159.02 × 19,471,648.01
  4. Step 4: Simplify right side
    51,819,465.21x = 1,513,729,012,290,165.50
  5. Step 5: Solve for x
    x = 1,513,729,012,290,165.50/51,819,465.21
  6. Step 6: Final answer
    x = 29,211,590.78

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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.