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Finding the Fourth Proportional to 476,117.08, 714,101.80 and 139,067.23

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Solution

The fourth proportional to 476,117.08, 714,101.80 and 139,067.23 is: 208,579.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,117.08 : 714,101.80 = 139,067.23 : x
  2. Step 2: Convert to fraction form
    476,117.08/714,101.80 = 139,067.23/x
  3. Step 3: Cross multiply
    476,117.08x = 714,101.80 × 139,067.23
  4. Step 4: Simplify right side
    476,117.08x = 99,308,159,219.69
  5. Step 5: Solve for x
    x = 99,308,159,219.69/476,117.08
  6. Step 6: Final answer
    x = 208,579.28

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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.