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Finding the Fourth Proportional to 358,132.75, 537,109.80 and 105,362.92

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Solution

The fourth proportional to 358,132.75, 537,109.80 and 105,362.92 is: 158,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,132.75 : 537,109.80 = 105,362.92 : x
  2. Step 2: Convert to fraction form
    358,132.75/537,109.80 = 105,362.92/x
  3. Step 3: Cross multiply
    358,132.75x = 537,109.80 × 105,362.92
  4. Step 4: Simplify right side
    358,132.75x = 56,591,456,888.62
  5. Step 5: Solve for x
    x = 56,591,456,888.62/358,132.75
  6. Step 6: Final answer
    x = 158,018.10

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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.