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Finding the Fourth Proportional to 242,985.84, 364,532.16 and 74,529.36

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Solution

The fourth proportional to 242,985.84, 364,532.16 and 74,529.36 is: 111,810.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,985.84 : 364,532.16 = 74,529.36 : x
  2. Step 2: Convert to fraction form
    242,985.84/364,532.16 = 74,529.36/x
  3. Step 3: Cross multiply
    242,985.84x = 364,532.16 × 74,529.36
  4. Step 4: Simplify right side
    242,985.84x = 27,168,348,584.22
  5. Step 5: Solve for x
    x = 27,168,348,584.22/242,985.84
  6. Step 6: Final answer
    x = 111,810.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.