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Finding the Fourth Proportional to 312,507.92, 468,665.24 and 112,802.91

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Solution

The fourth proportional to 312,507.92, 468,665.24 and 112,802.91 is: 169,169.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,507.92 : 468,665.24 = 112,802.91 : x
  2. Step 2: Convert to fraction form
    312,507.92/468,665.24 = 112,802.91/x
  3. Step 3: Cross multiply
    312,507.92x = 468,665.24 × 112,802.91
  4. Step 4: Simplify right side
    312,507.92x = 52,866,802,323.83
  5. Step 5: Solve for x
    x = 52,866,802,323.83/312,507.92
  6. Step 6: Final answer
    x = 169,169.48

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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.