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Finding the Fourth Proportional to 99,792.40, 149,688.60 and 62,394.70

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Solution

The fourth proportional to 99,792.40, 149,688.60 and 62,394.70 is: 93,592.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,792.40 : 149,688.60 = 62,394.70 : x
  2. Step 2: Convert to fraction form
    99,792.40/149,688.60 = 62,394.70/x
  3. Step 3: Cross multiply
    99,792.40x = 149,688.60 × 62,394.70
  4. Step 4: Simplify right side
    99,792.40x = 9,339,775,290.42
  5. Step 5: Solve for x
    x = 9,339,775,290.42/99,792.40
  6. Step 6: Final answer
    x = 93,592.05

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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.