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Finding the Fourth Proportional to 216,510.61, 324,766.08 and 58,739.06

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Solution

The fourth proportional to 216,510.61, 324,766.08 and 58,739.06 is: 88,108.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,510.61 : 324,766.08 = 58,739.06 : x
  2. Step 2: Convert to fraction form
    216,510.61/324,766.08 = 58,739.06/x
  3. Step 3: Cross multiply
    216,510.61x = 324,766.08 × 58,739.06
  4. Step 4: Simplify right side
    216,510.61x = 19,076,454,779.50
  5. Step 5: Solve for x
    x = 19,076,454,779.50/216,510.61
  6. Step 6: Final answer
    x = 88,108.64

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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.