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Finding the Fourth Proportional to 99,518.90, 149,278.35 and 44,114.90

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Solution

The fourth proportional to 99,518.90, 149,278.35 and 44,114.90 is: 66,172.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,518.90 : 149,278.35 = 44,114.90 : x
  2. Step 2: Convert to fraction form
    99,518.90/149,278.35 = 44,114.90/x
  3. Step 3: Cross multiply
    99,518.90x = 149,278.35 × 44,114.90
  4. Step 4: Simplify right side
    99,518.90x = 6,585,399,482.42
  5. Step 5: Solve for x
    x = 6,585,399,482.42/99,518.90
  6. Step 6: Final answer
    x = 66,172.35

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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.