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Finding the Fourth Proportional to 132,798.68, 183,259.71 and 72,369.74

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Solution

The fourth proportional to 132,798.68, 183,259.71 and 72,369.74 is: 99,868.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,798.68 : 183,259.71 = 72,369.74 : x
  2. Step 2: Convert to fraction form
    132,798.68/183,259.71 = 72,369.74/x
  3. Step 3: Cross multiply
    132,798.68x = 183,259.71 × 72,369.74
  4. Step 4: Simplify right side
    132,798.68x = 13,262,456,648.88
  5. Step 5: Solve for x
    x = 13,262,456,648.88/132,798.68
  6. Step 6: Final answer
    x = 99,868.89

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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.