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Finding the Fourth Proportional to 111,931.40, 167,897.10 and 41,801.60

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Solution

The fourth proportional to 111,931.40, 167,897.10 and 41,801.60 is: 62,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,931.40 : 167,897.10 = 41,801.60 : x
  2. Step 2: Convert to fraction form
    111,931.40/167,897.10 = 41,801.60/x
  3. Step 3: Cross multiply
    111,931.40x = 167,897.10 × 41,801.60
  4. Step 4: Simplify right side
    111,931.40x = 7,018,367,415.36
  5. Step 5: Solve for x
    x = 7,018,367,415.36/111,931.40
  6. Step 6: Final answer
    x = 62,702.40

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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.