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Finding the Fourth Proportional to 47,859,472.90, 71,789,209.35 and 46,796,590.90

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Solution

The fourth proportional to 47,859,472.90, 71,789,209.35 and 46,796,590.90 is: 70,194,886.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,859,472.90 : 71,789,209.35 = 46,796,590.90 : x
  2. Step 2: Convert to fraction form
    47,859,472.90/71,789,209.35 = 46,796,590.90/x
  3. Step 3: Cross multiply
    47,859,472.90x = 71,789,209.35 × 46,796,590.90
  4. Step 4: Simplify right side
    47,859,472.90x = 3,359,490,260,986,404.50
  5. Step 5: Solve for x
    x = 3,359,490,260,986,404.50/47,859,472.90
  6. Step 6: Final answer
    x = 70,194,886.35

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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.