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Finding the Fourth Proportional to 191,510.22, 287,284.95 and 73,281.02

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Solution

The fourth proportional to 191,510.22, 287,284.95 and 73,281.02 is: 109,929.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,510.22 : 287,284.95 = 73,281.02 : x
  2. Step 2: Convert to fraction form
    191,510.22/287,284.95 = 73,281.02/x
  3. Step 3: Cross multiply
    191,510.22x = 287,284.95 × 73,281.02
  4. Step 4: Simplify right side
    191,510.22x = 21,052,534,166.65
  5. Step 5: Solve for x
    x = 21,052,534,166.65/191,510.22
  6. Step 6: Final answer
    x = 109,929.04

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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.