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Finding the Fourth Proportional to 215,835,135.30, 302,849,433.90 and 215,835,135.30

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Solution

The fourth proportional to 215,835,135.30, 302,849,433.90 and 215,835,135.30 is: 302,849,433.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,835,135.30 : 302,849,433.90 = 215,835,135.30 : x
  2. Step 2: Convert to fraction form
    215,835,135.30/302,849,433.90 = 215,835,135.30/x
  3. Step 3: Cross multiply
    215,835,135.30x = 302,849,433.90 × 215,835,135.30
  4. Step 4: Simplify right side
    215,835,135.30x = 65,365,548,541,334,904
  5. Step 5: Solve for x
    x = 65,365,548,541,334,904/215,835,135.30
  6. Step 6: Final answer
    x = 302,849,433.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.