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Finding the Fourth Proportional to 79,612.65, 109,862.73 and 43,802.37

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Solution

The fourth proportional to 79,612.65, 109,862.73 and 43,802.37 is: 60,445.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,612.65 : 109,862.73 = 43,802.37 : x
  2. Step 2: Convert to fraction form
    79,612.65/109,862.73 = 43,802.37/x
  3. Step 3: Cross multiply
    79,612.65x = 109,862.73 × 43,802.37
  4. Step 4: Simplify right side
    79,612.65x = 4,812,247,948.67
  5. Step 5: Solve for x
    x = 4,812,247,948.67/79,612.65
  6. Step 6: Final answer
    x = 60,445.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.