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Finding the Fourth Proportional to 243,999.15, 365,987.94 and 66,506.15

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Solution

The fourth proportional to 243,999.15, 365,987.94 and 66,506.15 is: 99,756.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,999.15 : 365,987.94 = 66,506.15 : x
  2. Step 2: Convert to fraction form
    243,999.15/365,987.94 = 66,506.15/x
  3. Step 3: Cross multiply
    243,999.15x = 365,987.94 × 66,506.15
  4. Step 4: Simplify right side
    243,999.15x = 24,340,447,005.89
  5. Step 5: Solve for x
    x = 24,340,447,005.89/243,999.15
  6. Step 6: Final answer
    x = 99,756.28

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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.