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Finding the Fourth Proportional to 251,137.80, 376,263.90 and 132,547.86

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Solution

The fourth proportional to 251,137.80, 376,263.90 and 132,547.86 is: 198,588.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,137.80 : 376,263.90 = 132,547.86 : x
  2. Step 2: Convert to fraction form
    251,137.80/376,263.90 = 132,547.86/x
  3. Step 3: Cross multiply
    251,137.80x = 376,263.90 × 132,547.86
  4. Step 4: Simplify right side
    251,137.80x = 49,872,974,740.25
  5. Step 5: Solve for x
    x = 49,872,974,740.25/251,137.80
  6. Step 6: Final answer
    x = 198,588.08

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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.