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Finding the Fourth Proportional to 453,117.87, 679,632.84 and 137,577.51

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Solution

The fourth proportional to 453,117.87, 679,632.84 and 137,577.51 is: 206,352.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,117.87 : 679,632.84 = 137,577.51 : x
  2. Step 2: Convert to fraction form
    453,117.87/679,632.84 = 137,577.51/x
  3. Step 3: Cross multiply
    453,117.87x = 679,632.84 × 137,577.51
  4. Step 4: Simplify right side
    453,117.87x = 93,502,193,841.43
  5. Step 5: Solve for x
    x = 93,502,193,841.43/453,117.87
  6. Step 6: Final answer
    x = 206,352.92

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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.