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Finding the Fourth Proportional to 97,758.40, 146,572.80 and 35,420.80

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Solution

The fourth proportional to 97,758.40, 146,572.80 and 35,420.80 is: 53,107.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,758.40 : 146,572.80 = 35,420.80 : x
  2. Step 2: Convert to fraction form
    97,758.40/146,572.80 = 35,420.80/x
  3. Step 3: Cross multiply
    97,758.40x = 146,572.80 × 35,420.80
  4. Step 4: Simplify right side
    97,758.40x = 5,191,725,834.24
  5. Step 5: Solve for x
    x = 5,191,725,834.24/97,758.40
  6. Step 6: Final answer
    x = 53,107.72

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1.5x scale

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.