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Finding the Fourth Proportional to 92,404.40, 138,347.40 and 89,812.40

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Solution

The fourth proportional to 92,404.40, 138,347.40 and 89,812.40 is: 134,466.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,404.40 : 138,347.40 = 89,812.40 : x
  2. Step 2: Convert to fraction form
    92,404.40/138,347.40 = 89,812.40/x
  3. Step 3: Cross multiply
    92,404.40x = 138,347.40 × 89,812.40
  4. Step 4: Simplify right side
    92,404.40x = 12,425,312,027.76
  5. Step 5: Solve for x
    x = 12,425,312,027.76/92,404.40
  6. Step 6: Final answer
    x = 134,466.67

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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.