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Finding the Fourth Proportional to 73,407.61, 101,307.41 and 41,142.61

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Solution

The fourth proportional to 73,407.61, 101,307.41 and 41,142.61 is: 56,779.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,407.61 : 101,307.41 = 41,142.61 : x
  2. Step 2: Convert to fraction form
    73,407.61/101,307.41 = 41,142.61/x
  3. Step 3: Cross multiply
    73,407.61x = 101,307.41 × 41,142.61
  4. Step 4: Simplify right side
    73,407.61x = 4,168,051,259.74
  5. Step 5: Solve for x
    x = 4,168,051,259.74/73,407.61
  6. Step 6: Final answer
    x = 56,779.55

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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.