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Finding the Fourth Proportional to 452,994.95, 679,492.55 and 133,146.87

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Solution

The fourth proportional to 452,994.95, 679,492.55 and 133,146.87 is: 199,720.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,994.95 : 679,492.55 = 133,146.87 : x
  2. Step 2: Convert to fraction form
    452,994.95/679,492.55 = 133,146.87/x
  3. Step 3: Cross multiply
    452,994.95x = 679,492.55 × 133,146.87
  4. Step 4: Simplify right side
    452,994.95x = 90,472,306,220.82
  5. Step 5: Solve for x
    x = 90,472,306,220.82/452,994.95
  6. Step 6: Final answer
    x = 199,720.34

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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.