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Finding the Fourth Proportional to 179,987.79, 269,986.14 and 46,874.01

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Solution

The fourth proportional to 179,987.79, 269,986.14 and 46,874.01 is: 70,312.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,987.79 : 269,986.14 = 46,874.01 : x
  2. Step 2: Convert to fraction form
    179,987.79/269,986.14 = 46,874.01/x
  3. Step 3: Cross multiply
    179,987.79x = 269,986.14 × 46,874.01
  4. Step 4: Simplify right side
    179,987.79x = 12,655,333,026.22
  5. Step 5: Solve for x
    x = 12,655,333,026.22/179,987.79
  6. Step 6: Final answer
    x = 70,312.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.