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Finding the Fourth Proportional to 365,007.20, 547,510.79 and 115,689.20

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Solution

The fourth proportional to 365,007.20, 547,510.79 and 115,689.20 is: 173,533.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,007.20 : 547,510.79 = 115,689.20 : x
  2. Step 2: Convert to fraction form
    365,007.20/547,510.79 = 115,689.20/x
  3. Step 3: Cross multiply
    365,007.20x = 547,510.79 × 115,689.20
  4. Step 4: Simplify right side
    365,007.20x = 63,341,081,970.47
  5. Step 5: Solve for x
    x = 63,341,081,970.47/365,007.20
  6. Step 6: Final answer
    x = 173,533.79

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Similar ratio
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1.5x scale

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.