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Finding the Fourth Proportional to 215,835,168.80, 302,849,480.80 and 215,835,168.80

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Solution

The fourth proportional to 215,835,168.80, 302,849,480.80 and 215,835,168.80 is: 302,849,480.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,835,168.80 : 302,849,480.80 = 215,835,168.80 : x
  2. Step 2: Convert to fraction form
    215,835,168.80/302,849,480.80 = 215,835,168.80/x
  3. Step 3: Cross multiply
    215,835,168.80x = 302,849,480.80 × 215,835,168.80
  4. Step 4: Simplify right side
    215,835,168.80x = 65,365,568,809,460,368
  5. Step 5: Solve for x
    x = 65,365,568,809,460,368/215,835,168.80
  6. Step 6: Final answer
    x = 302,849,480.80

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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.