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Finding the Fourth Proportional to 463,612.58, 695,518.78 and 143,758.02

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Solution

The fourth proportional to 463,612.58, 695,518.78 and 143,758.02 is: 215,668.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,612.58 : 695,518.78 = 143,758.02 : x
  2. Step 2: Convert to fraction form
    463,612.58/695,518.78 = 143,758.02/x
  3. Step 3: Cross multiply
    463,612.58x = 695,518.78 × 143,758.02
  4. Step 4: Simplify right side
    463,612.58x = 99,986,402,685.62
  5. Step 5: Solve for x
    x = 99,986,402,685.62/463,612.58
  6. Step 6: Final answer
    x = 215,668.01

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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.