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Finding the Fourth Proportional to 153,154.92, 211,372.64 and 92,746.57

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Solution

The fourth proportional to 153,154.92, 211,372.64 and 92,746.57 is: 128,001.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,154.92 : 211,372.64 = 92,746.57 : x
  2. Step 2: Convert to fraction form
    153,154.92/211,372.64 = 92,746.57/x
  3. Step 3: Cross multiply
    153,154.92x = 211,372.64 × 92,746.57
  4. Step 4: Simplify right side
    153,154.92x = 19,604,087,351.84
  5. Step 5: Solve for x
    x = 19,604,087,351.84/153,154.92
  6. Step 6: Final answer
    x = 128,001.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.