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Finding the Fourth Proportional to 537,758.79, 806,776.59 and 158,664.21

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Solution

The fourth proportional to 537,758.79, 806,776.59 and 158,664.21 is: 238,037.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,758.79 : 806,776.59 = 158,664.21 : x
  2. Step 2: Convert to fraction form
    537,758.79/806,776.59 = 158,664.21/x
  3. Step 3: Cross multiply
    537,758.79x = 806,776.59 × 158,664.21
  4. Step 4: Simplify right side
    537,758.79x = 128,006,570,298.84
  5. Step 5: Solve for x
    x = 128,006,570,298.84/537,758.79
  6. Step 6: Final answer
    x = 238,037.15

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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.