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Finding the Fourth Proportional to 108,792.84, 150,134.56 and 61,043.08

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Solution

The fourth proportional to 108,792.84, 150,134.56 and 61,043.08 is: 84,239.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,792.84 : 150,134.56 = 61,043.08 : x
  2. Step 2: Convert to fraction form
    108,792.84/150,134.56 = 61,043.08/x
  3. Step 3: Cross multiply
    108,792.84x = 150,134.56 × 61,043.08
  4. Step 4: Simplify right side
    108,792.84x = 9,164,675,956.84
  5. Step 5: Solve for x
    x = 9,164,675,956.84/108,792.84
  6. Step 6: Final answer
    x = 84,239.70

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1.5x scale

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.