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Finding the Fourth Proportional to 267,972, 369,802.80 and 167,428.32

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Solution

The fourth proportional to 267,972, 369,802.80 and 167,428.32 is: 231,051.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,972 : 369,802.80 = 167,428.32 : x
  2. Step 2: Convert to fraction form
    267,972/369,802.80 = 167,428.32/x
  3. Step 3: Cross multiply
    267,972x = 369,802.80 × 167,428.32
  4. Step 4: Simplify right side
    267,972x = 61,915,461,535.30
  5. Step 5: Solve for x
    x = 61,915,461,535.30/267,972
  6. Step 6: Final answer
    x = 231,051.98

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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.