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Finding the Fourth Proportional to 97,127.20, 145,431.60 and 97,127.20

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Solution

The fourth proportional to 97,127.20, 145,431.60 and 97,127.20 is: 145,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,127.20 : 145,431.60 = 97,127.20 : x
  2. Step 2: Convert to fraction form
    97,127.20/145,431.60 = 97,127.20/x
  3. Step 3: Cross multiply
    97,127.20x = 145,431.60 × 97,127.20
  4. Step 4: Simplify right side
    97,127.20x = 14,125,364,099.52
  5. Step 5: Solve for x
    x = 14,125,364,099.52/97,127.20
  6. Step 6: Final answer
    x = 145,431.60

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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.