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Finding the Fourth Proportional to 97,694.40, 146,541.60 and 91,862.40

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Solution

The fourth proportional to 97,694.40, 146,541.60 and 91,862.40 is: 137,793.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,694.40 : 146,541.60 = 91,862.40 : x
  2. Step 2: Convert to fraction form
    97,694.40/146,541.60 = 91,862.40/x
  3. Step 3: Cross multiply
    97,694.40x = 146,541.60 × 91,862.40
  4. Step 4: Simplify right side
    97,694.40x = 13,461,663,075.84
  5. Step 5: Solve for x
    x = 13,461,663,075.84/97,694.40
  6. Step 6: Final answer
    x = 137,793.60

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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.