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Finding the Fourth Proportional to 103,572.64, 142,953.84 and 73,326.52

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Solution

The fourth proportional to 103,572.64, 142,953.84 and 73,326.52 is: 101,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,572.64 : 142,953.84 = 73,326.52 : x
  2. Step 2: Convert to fraction form
    103,572.64/142,953.84 = 73,326.52/x
  3. Step 3: Cross multiply
    103,572.64x = 142,953.84 × 73,326.52
  4. Step 4: Simplify right side
    103,572.64x = 10,482,307,607.84
  5. Step 5: Solve for x
    x = 10,482,307,607.84/103,572.64
  6. Step 6: Final answer
    x = 101,207.30

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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.