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Finding the Fourth Proportional to 286,011.74, 429,042.51 and 93,828.52

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Solution

The fourth proportional to 286,011.74, 429,042.51 and 93,828.52 is: 140,750.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,011.74 : 429,042.51 = 93,828.52 : x
  2. Step 2: Convert to fraction form
    286,011.74/429,042.51 = 93,828.52/x
  3. Step 3: Cross multiply
    286,011.74x = 429,042.51 × 93,828.52
  4. Step 4: Simplify right side
    286,011.74x = 40,256,423,730.39
  5. Step 5: Solve for x
    x = 40,256,423,730.39/286,011.74
  6. Step 6: Final answer
    x = 140,750.95

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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.