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Finding the Fourth Proportional to 92,101.98, 138,146.70 and 35,931.72

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Solution

The fourth proportional to 92,101.98, 138,146.70 and 35,931.72 is: 53,895.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,101.98 : 138,146.70 = 35,931.72 : x
  2. Step 2: Convert to fraction form
    92,101.98/138,146.70 = 35,931.72/x
  3. Step 3: Cross multiply
    92,101.98x = 138,146.70 × 35,931.72
  4. Step 4: Simplify right side
    92,101.98x = 4,963,848,543.32
  5. Step 5: Solve for x
    x = 4,963,848,543.32/92,101.98
  6. Step 6: Final answer
    x = 53,895.13

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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.