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Finding the Fourth Proportional to 85,062.02, 127,640.02 and 35,130.50

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Solution

The fourth proportional to 85,062.02, 127,640.02 and 35,130.50 is: 52,715.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,062.02 : 127,640.02 = 35,130.50 : x
  2. Step 2: Convert to fraction form
    85,062.02/127,640.02 = 35,130.50/x
  3. Step 3: Cross multiply
    85,062.02x = 127,640.02 × 35,130.50
  4. Step 4: Simplify right side
    85,062.02x = 4,484,057,722.61
  5. Step 5: Solve for x
    x = 4,484,057,722.61/85,062.02
  6. Step 6: Final answer
    x = 52,715.16

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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.