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Finding the Fourth Proportional to 97,415.40, 145,815.90 and 94,343.40

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Solution

The fourth proportional to 97,415.40, 145,815.90 and 94,343.40 is: 141,217.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,415.40 : 145,815.90 = 94,343.40 : x
  2. Step 2: Convert to fraction form
    97,415.40/145,815.90 = 94,343.40/x
  3. Step 3: Cross multiply
    97,415.40x = 145,815.90 × 94,343.40
  4. Step 4: Simplify right side
    97,415.40x = 13,756,767,780.06
  5. Step 5: Solve for x
    x = 13,756,767,780.06/97,415.40
  6. Step 6: Final answer
    x = 141,217.59

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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.