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Finding the Fourth Proportional to 452,811.47, 679,240.42 and 115,854.98

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Solution

The fourth proportional to 452,811.47, 679,240.42 and 115,854.98 is: 173,788.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,811.47 : 679,240.42 = 115,854.98 : x
  2. Step 2: Convert to fraction form
    452,811.47/679,240.42 = 115,854.98/x
  3. Step 3: Cross multiply
    452,811.47x = 679,240.42 × 115,854.98
  4. Step 4: Simplify right side
    452,811.47x = 78,693,381,588.45
  5. Step 5: Solve for x
    x = 78,693,381,588.45/452,811.47
  6. Step 6: Final answer
    x = 173,788.40

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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.