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Finding the Fourth Proportional to 111,483.35, 153,803.22 and 63,711.06

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Solution

The fourth proportional to 111,483.35, 153,803.22 and 63,711.06 is: 87,896.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,483.35 : 153,803.22 = 63,711.06 : x
  2. Step 2: Convert to fraction form
    111,483.35/153,803.22 = 63,711.06/x
  3. Step 3: Cross multiply
    111,483.35x = 153,803.22 × 63,711.06
  4. Step 4: Simplify right side
    111,483.35x = 9,798,966,177.61
  5. Step 5: Solve for x
    x = 9,798,966,177.61/111,483.35
  6. Step 6: Final answer
    x = 87,896.23

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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.