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Finding the Fourth Proportional to 97,870.90, 137,330.30 and 97,870.90

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Solution

The fourth proportional to 97,870.90, 137,330.30 and 97,870.90 is: 137,330.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,870.90 : 137,330.30 = 97,870.90 : x
  2. Step 2: Convert to fraction form
    97,870.90/137,330.30 = 97,870.90/x
  3. Step 3: Cross multiply
    97,870.90x = 137,330.30 × 97,870.90
  4. Step 4: Simplify right side
    97,870.90x = 13,440,640,058.27
  5. Step 5: Solve for x
    x = 13,440,640,058.27/97,870.90
  6. Step 6: Final answer
    x = 137,330.30

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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.