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Finding the Fourth Proportional to 453,005.60, 679,479.24 and 137,465.24

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Solution

The fourth proportional to 453,005.60, 679,479.24 and 137,465.24 is: 206,189.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,005.60 : 679,479.24 = 137,465.24 : x
  2. Step 2: Convert to fraction form
    453,005.60/679,479.24 = 137,465.24/x
  3. Step 3: Cross multiply
    453,005.60x = 679,479.24 × 137,465.24
  4. Step 4: Simplify right side
    453,005.60x = 93,404,776,801.62
  5. Step 5: Solve for x
    x = 93,404,776,801.62/453,005.60
  6. Step 6: Final answer
    x = 206,189.01

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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.