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Finding the Fourth Proportional to 101,421.40, 152,132.10 and 34,855.60

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Solution

The fourth proportional to 101,421.40, 152,132.10 and 34,855.60 is: 52,283.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,421.40 : 152,132.10 = 34,855.60 : x
  2. Step 2: Convert to fraction form
    101,421.40/152,132.10 = 34,855.60/x
  3. Step 3: Cross multiply
    101,421.40x = 152,132.10 × 34,855.60
  4. Step 4: Simplify right side
    101,421.40x = 5,302,655,624.76
  5. Step 5: Solve for x
    x = 5,302,655,624.76/101,421.40
  6. Step 6: Final answer
    x = 52,283.40

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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.