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Finding the Fourth Proportional to 72,373.65, 108,597.51 and 34,465.80

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Solution

The fourth proportional to 72,373.65, 108,597.51 and 34,465.80 is: 51,716.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,373.65 : 108,597.51 = 34,465.80 : x
  2. Step 2: Convert to fraction form
    72,373.65/108,597.51 = 34,465.80/x
  3. Step 3: Cross multiply
    72,373.65x = 108,597.51 × 34,465.80
  4. Step 4: Simplify right side
    72,373.65x = 3,742,900,060.16
  5. Step 5: Solve for x
    x = 3,742,900,060.16/72,373.65
  6. Step 6: Final answer
    x = 51,716.34

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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.