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Finding the Fourth Proportional to 358,410.91, 537,615.71 and 105,868.75

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Solution

The fourth proportional to 358,410.91, 537,615.71 and 105,868.75 is: 158,802.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,410.91 : 537,615.71 = 105,868.75 : x
  2. Step 2: Convert to fraction form
    358,410.91/537,615.71 = 105,868.75/x
  3. Step 3: Cross multiply
    358,410.91x = 537,615.71 × 105,868.75
  4. Step 4: Simplify right side
    358,410.91x = 56,916,702,947.22
  5. Step 5: Solve for x
    x = 56,916,702,947.22/358,410.91
  6. Step 6: Final answer
    x = 158,802.93

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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.