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Finding the Fourth Proportional to 99,295.76, 149,018.52 and 52,559.12

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Solution

The fourth proportional to 99,295.76, 149,018.52 and 52,559.12 is: 78,878.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,295.76 : 149,018.52 = 52,559.12 : x
  2. Step 2: Convert to fraction form
    99,295.76/149,018.52 = 52,559.12/x
  3. Step 3: Cross multiply
    99,295.76x = 149,018.52 × 52,559.12
  4. Step 4: Simplify right side
    99,295.76x = 7,832,282,274.90
  5. Step 5: Solve for x
    x = 7,832,282,274.90/99,295.76
  6. Step 6: Final answer
    x = 78,878.32

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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.