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Finding the Fourth Proportional to 228,051.80, 342,114.42 and 70,280.18

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Solution

The fourth proportional to 228,051.80, 342,114.42 and 70,280.18 is: 105,431.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,051.80 : 342,114.42 = 70,280.18 : x
  2. Step 2: Convert to fraction form
    228,051.80/342,114.42 = 70,280.18/x
  3. Step 3: Cross multiply
    228,051.80x = 342,114.42 × 70,280.18
  4. Step 4: Simplify right side
    228,051.80x = 24,043,863,018.20
  5. Step 5: Solve for x
    x = 24,043,863,018.20/228,051.80
  6. Step 6: Final answer
    x = 105,431.59

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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.