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Finding the Fourth Proportional to 370,717.57, 556,071.16 and 146,079.94

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Solution

The fourth proportional to 370,717.57, 556,071.16 and 146,079.94 is: 219,117.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,717.57 : 556,071.16 = 146,079.94 : x
  2. Step 2: Convert to fraction form
    370,717.57/556,071.16 = 146,079.94/x
  3. Step 3: Cross multiply
    370,717.57x = 556,071.16 × 146,079.94
  4. Step 4: Simplify right side
    370,717.57x = 81,230,843,287.47
  5. Step 5: Solve for x
    x = 81,230,843,287.47/370,717.57
  6. Step 6: Final answer
    x = 219,117.87

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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.