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Finding the Fourth Proportional to 228,707.64, 343,094.64 and 70,948.80

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Solution

The fourth proportional to 228,707.64, 343,094.64 and 70,948.80 is: 106,433.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,707.64 : 343,094.64 = 70,948.80 : x
  2. Step 2: Convert to fraction form
    228,707.64/343,094.64 = 70,948.80/x
  3. Step 3: Cross multiply
    228,707.64x = 343,094.64 × 70,948.80
  4. Step 4: Simplify right side
    228,707.64x = 24,342,152,994.43
  5. Step 5: Solve for x
    x = 24,342,152,994.43/228,707.64
  6. Step 6: Final answer
    x = 106,433.49

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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.