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Finding the Fourth Proportional to 130,083.66, 179,518.95 and 73,493.82

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Solution

The fourth proportional to 130,083.66, 179,518.95 and 73,493.82 is: 101,423.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,083.66 : 179,518.95 = 73,493.82 : x
  2. Step 2: Convert to fraction form
    130,083.66/179,518.95 = 73,493.82/x
  3. Step 3: Cross multiply
    130,083.66x = 179,518.95 × 73,493.82
  4. Step 4: Simplify right side
    130,083.66x = 13,193,533,397.89
  5. Step 5: Solve for x
    x = 13,193,533,397.89/130,083.66
  6. Step 6: Final answer
    x = 101,423.45

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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.