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Finding the Fourth Proportional to 97,767.16, 134,918.68 and 53,055.16

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Solution

The fourth proportional to 97,767.16, 134,918.68 and 53,055.16 is: 73,216.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,767.16 : 134,918.68 = 53,055.16 : x
  2. Step 2: Convert to fraction form
    97,767.16/134,918.68 = 53,055.16/x
  3. Step 3: Cross multiply
    97,767.16x = 134,918.68 × 53,055.16
  4. Step 4: Simplify right side
    97,767.16x = 7,158,131,214.52
  5. Step 5: Solve for x
    x = 7,158,131,214.52/97,767.16
  6. Step 6: Final answer
    x = 73,216.11

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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.