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Finding the Fourth Proportional to 30,918,019.20, 46,377,028.80 and 30,918,019.20

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Solution

The fourth proportional to 30,918,019.20, 46,377,028.80 and 30,918,019.20 is: 46,377,028.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,918,019.20 : 46,377,028.80 = 30,918,019.20 : x
  2. Step 2: Convert to fraction form
    30,918,019.20/46,377,028.80 = 30,918,019.20/x
  3. Step 3: Cross multiply
    30,918,019.20x = 46,377,028.80 × 30,918,019.20
  4. Step 4: Simplify right side
    30,918,019.20x = 1,433,885,866,877,352.75
  5. Step 5: Solve for x
    x = 1,433,885,866,877,352.75/30,918,019.20
  6. Step 6: Final answer
    x = 46,377,028.80

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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.