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Finding the Fourth Proportional to 99,789.60, 149,482.80 and 62,234.40

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Solution

The fourth proportional to 99,789.60, 149,482.80 and 62,234.40 is: 93,225.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,789.60 : 149,482.80 = 62,234.40 : x
  2. Step 2: Convert to fraction form
    99,789.60/149,482.80 = 62,234.40/x
  3. Step 3: Cross multiply
    99,789.60x = 149,482.80 × 62,234.40
  4. Step 4: Simplify right side
    99,789.60x = 9,302,972,368.32
  5. Step 5: Solve for x
    x = 9,302,972,368.32/99,789.60
  6. Step 6: Final answer
    x = 93,225.87

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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.