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Finding the Fourth Proportional to 99,114.96, 148,732.92 and 42,944.16

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Solution

The fourth proportional to 99,114.96, 148,732.92 and 42,944.16 is: 64,442.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,114.96 : 148,732.92 = 42,944.16 : x
  2. Step 2: Convert to fraction form
    99,114.96/148,732.92 = 42,944.16/x
  3. Step 3: Cross multiply
    99,114.96x = 148,732.92 × 42,944.16
  4. Step 4: Simplify right side
    99,114.96x = 6,387,210,313.75
  5. Step 5: Solve for x
    x = 6,387,210,313.75/99,114.96
  6. Step 6: Final answer
    x = 64,442.44

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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.