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Finding the Fourth Proportional to 97,860.70, 137,189.30 and 97,860.70

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Solution

The fourth proportional to 97,860.70, 137,189.30 and 97,860.70 is: 137,189.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,860.70 : 137,189.30 = 97,860.70 : x
  2. Step 2: Convert to fraction form
    97,860.70/137,189.30 = 97,860.70/x
  3. Step 3: Cross multiply
    97,860.70x = 137,189.30 × 97,860.70
  4. Step 4: Simplify right side
    97,860.70x = 13,425,440,930.51
  5. Step 5: Solve for x
    x = 13,425,440,930.51/97,860.70
  6. Step 6: Final answer
    x = 137,189.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.