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Finding the Fourth Proportional to 191,497.10, 287,264.68 and 73,267.88

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Solution

The fourth proportional to 191,497.10, 287,264.68 and 73,267.88 is: 109,909.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,497.10 : 287,264.68 = 73,267.88 : x
  2. Step 2: Convert to fraction form
    191,497.10/287,264.68 = 73,267.88/x
  3. Step 3: Cross multiply
    191,497.10x = 287,264.68 × 73,267.88
  4. Step 4: Simplify right side
    191,497.10x = 21,047,272,482.99
  5. Step 5: Solve for x
    x = 21,047,272,482.99/191,497.10
  6. Step 6: Final answer
    x = 109,909.10

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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.