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Finding the Fourth Proportional to 191,266.04, 287,029.74 and 66,607.04

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Solution

The fourth proportional to 191,266.04, 287,029.74 and 66,607.04 is: 99,956.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,266.04 : 287,029.74 = 66,607.04 : x
  2. Step 2: Convert to fraction form
    191,266.04/287,029.74 = 66,607.04/x
  3. Step 3: Cross multiply
    191,266.04x = 287,029.74 × 66,607.04
  4. Step 4: Simplify right side
    191,266.04x = 19,118,201,373.37
  5. Step 5: Solve for x
    x = 19,118,201,373.37/191,266.04
  6. Step 6: Final answer
    x = 99,956.07

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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.