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Finding the Fourth Proportional to 145,080.19, 217,521.01 and 73,865.01

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Solution

The fourth proportional to 145,080.19, 217,521.01 and 73,865.01 is: 110,746.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,080.19 : 217,521.01 = 73,865.01 : x
  2. Step 2: Convert to fraction form
    145,080.19/217,521.01 = 73,865.01/x
  3. Step 3: Cross multiply
    145,080.19x = 217,521.01 × 73,865.01
  4. Step 4: Simplify right side
    145,080.19x = 16,067,192,642.70
  5. Step 5: Solve for x
    x = 16,067,192,642.70/145,080.19
  6. Step 6: Final answer
    x = 110,746.98

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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.