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Finding the Fourth Proportional to 73,316.16, 101,131.20 and 63,907.20

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Solution

The fourth proportional to 73,316.16, 101,131.20 and 63,907.20 is: 88,152.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,316.16 : 101,131.20 = 63,907.20 : x
  2. Step 2: Convert to fraction form
    73,316.16/101,131.20 = 63,907.20/x
  3. Step 3: Cross multiply
    73,316.16x = 101,131.20 × 63,907.20
  4. Step 4: Simplify right side
    73,316.16x = 6,463,011,824.64
  5. Step 5: Solve for x
    x = 6,463,011,824.64/73,316.16
  6. Step 6: Final answer
    x = 88,152.62

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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.