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Finding the Fourth Proportional to 348,088.60, 521,441.70 and 190,034.20

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Solution

The fourth proportional to 348,088.60, 521,441.70 and 190,034.20 is: 284,673.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,088.60 : 521,441.70 = 190,034.20 : x
  2. Step 2: Convert to fraction form
    348,088.60/521,441.70 = 190,034.20/x
  3. Step 3: Cross multiply
    348,088.60x = 521,441.70 × 190,034.20
  4. Step 4: Simplify right side
    348,088.60x = 99,091,756,306.14
  5. Step 5: Solve for x
    x = 99,091,756,306.14/348,088.60
  6. Step 6: Final answer
    x = 284,673.95

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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.