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Finding the Fourth Proportional to 375,289.55, 562,870.99 and 105,355.79

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Solution

The fourth proportional to 375,289.55, 562,870.99 and 105,355.79 is: 158,015.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,289.55 : 562,870.99 = 105,355.79 : x
  2. Step 2: Convert to fraction form
    375,289.55/562,870.99 = 105,355.79/x
  3. Step 3: Cross multiply
    375,289.55x = 562,870.99 × 105,355.79
  4. Step 4: Simplify right side
    375,289.55x = 59,301,717,819.53
  5. Step 5: Solve for x
    x = 59,301,717,819.53/375,289.55
  6. Step 6: Final answer
    x = 158,015.90

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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.