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Finding the Fourth Proportional to 215,835,167.80, 302,849,479.40 and 215,835,167.80

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Solution

The fourth proportional to 215,835,167.80, 302,849,479.40 and 215,835,167.80 is: 302,849,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,835,167.80 : 302,849,479.40 = 215,835,167.80 : x
  2. Step 2: Convert to fraction form
    215,835,167.80/302,849,479.40 = 215,835,167.80/x
  3. Step 3: Cross multiply
    215,835,167.80x = 302,849,479.40 × 215,835,167.80
  4. Step 4: Simplify right side
    215,835,167.80x = 65,365,568,204,441,640
  5. Step 5: Solve for x
    x = 65,365,568,204,441,640/215,835,167.80
  6. Step 6: Final answer
    x = 302,849,479.40

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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.