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Finding the Fourth Proportional to 228,560.64, 342,931.22 and 70,801.40

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Solution

The fourth proportional to 228,560.64, 342,931.22 and 70,801.40 is: 106,230.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,560.64 : 342,931.22 = 70,801.40 : x
  2. Step 2: Convert to fraction form
    228,560.64/342,931.22 = 70,801.40/x
  3. Step 3: Cross multiply
    228,560.64x = 342,931.22 × 70,801.40
  4. Step 4: Simplify right side
    228,560.64x = 24,280,010,479.71
  5. Step 5: Solve for x
    x = 24,280,010,479.71/228,560.64
  6. Step 6: Final answer
    x = 106,230.06

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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.