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Finding the Fourth Proportional to 183,459.31, 253,066.35 and 115,368.28

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Solution

The fourth proportional to 183,459.31, 253,066.35 and 115,368.28 is: 159,140.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,459.31 : 253,066.35 = 115,368.28 : x
  2. Step 2: Convert to fraction form
    183,459.31/253,066.35 = 115,368.28/x
  3. Step 3: Cross multiply
    183,459.31x = 253,066.35 × 115,368.28
  4. Step 4: Simplify right side
    183,459.31x = 29,195,829,525.38
  5. Step 5: Solve for x
    x = 29,195,829,525.38/183,459.31
  6. Step 6: Final answer
    x = 159,140.63

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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.