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Finding the Fourth Proportional to 107,368, 161,097.48 and 57,435

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Solution

The fourth proportional to 107,368, 161,097.48 and 57,435 is: 86,176.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,368 : 161,097.48 = 57,435 : x
  2. Step 2: Convert to fraction form
    107,368/161,097.48 = 57,435/x
  3. Step 3: Cross multiply
    107,368x = 161,097.48 × 57,435
  4. Step 4: Simplify right side
    107,368x = 9,252,633,763.80
  5. Step 5: Solve for x
    x = 9,252,633,763.80/107,368
  6. Step 6: Final answer
    x = 86,176.83

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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.