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Finding the Fourth Proportional to 191,548.04, 287,453.34 and 66,889.04

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Solution

The fourth proportional to 191,548.04, 287,453.34 and 66,889.04 is: 100,379.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,548.04 : 287,453.34 = 66,889.04 : x
  2. Step 2: Convert to fraction form
    191,548.04/287,453.34 = 66,889.04/x
  3. Step 3: Cross multiply
    191,548.04x = 287,453.34 × 66,889.04
  4. Step 4: Simplify right side
    191,548.04x = 19,227,477,957.39
  5. Step 5: Solve for x
    x = 19,227,477,957.39/191,548.04
  6. Step 6: Final answer
    x = 100,379.40

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1.5x scale

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.