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Finding the Fourth Proportional to 191,442.60, 287,190.09 and 65,048.85

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Solution

The fourth proportional to 191,442.60, 287,190.09 and 65,048.85 is: 97,582.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,442.60 : 287,190.09 = 65,048.85 : x
  2. Step 2: Convert to fraction form
    191,442.60/287,190.09 = 65,048.85/x
  3. Step 3: Cross multiply
    191,442.60x = 287,190.09 × 65,048.85
  4. Step 4: Simplify right side
    191,442.60x = 18,681,385,085.90
  5. Step 5: Solve for x
    x = 18,681,385,085.90/191,442.60
  6. Step 6: Final answer
    x = 97,582.17

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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.