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Finding the Fourth Proportional to 93,361.29, 128,837.98 and 53,075.06

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Solution

The fourth proportional to 93,361.29, 128,837.98 and 53,075.06 is: 73,243.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,361.29 : 128,837.98 = 53,075.06 : x
  2. Step 2: Convert to fraction form
    93,361.29/128,837.98 = 53,075.06/x
  3. Step 3: Cross multiply
    93,361.29x = 128,837.98 × 53,075.06
  4. Step 4: Simplify right side
    93,361.29x = 6,838,083,850.24
  5. Step 5: Solve for x
    x = 6,838,083,850.24/93,361.29
  6. Step 6: Final answer
    x = 73,243.24

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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.