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Finding the Fourth Proportional to 156,798.79, 216,391.35 and 88,804.27

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Solution

The fourth proportional to 156,798.79, 216,391.35 and 88,804.27 is: 122,555.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,798.79 : 216,391.35 = 88,804.27 : x
  2. Step 2: Convert to fraction form
    156,798.79/216,391.35 = 88,804.27/x
  3. Step 3: Cross multiply
    156,798.79x = 216,391.35 × 88,804.27
  4. Step 4: Simplify right side
    156,798.79x = 19,216,476,583.65
  5. Step 5: Solve for x
    x = 19,216,476,583.65/156,798.79
  6. Step 6: Final answer
    x = 122,555.01

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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.